How to connect wires with WAGO terminal block

Experience using WAGO terminal block | Don't mix copper and aluminum!

Surely you heard in school (if you went to school at all - like me) about these valences of metals, about their incompatibilities, and perhaps even heard about semiconductors.

So, I’ll tell you - don’t twist copper and aluminum , never at all . Well, if, of course, the load currents do not exceed 0.1 - 1 A, then it is possible, but I do not recommend it. This is what we will talk about next with a practical example.

And now in detail. Perhaps you are an experienced and not very electrician and have decided to buy wires for yourself or someone you know. Then they suddenly remembered that you have the Internet at home, and they probably already figured out how to quickly and without headaches make junction boxes, reliably and for 3 kopecks. And they really came up with it!

Wago or twists?

If earlier, about 15-20-30 years ago, twists were used everywhere. And they still use it now because it’s more reliable. Then progress has long since stepped forward and invented for humanity - Wago TERMINAL BOARDS . Yes, not simple ones for a screwdriver and a nut with a bolt, but major ones - they are called WAGO terminal blocks and they are produced in various types. For soft and hard wire, for 2.5-4 sq.mm and for 6-8 sq.mm with and without graphite-solid grease.

The price of wago terminal blocks, after the fall of the ruble, became generally biting, but what can you do, after all, the thing was made for people.

As a field electrician, I had the opportunity to see how in all sorts of small families, dorms and other residential premises they use twisting of all types of wires and everything. Which of course often leads to overheating and all kinds of burnt contacts, people then sit without light and call ME!

Those same twisted wires that hold all the electrics together.

In general, you should not mix different metals in electrical connections - the risk of fire is very high!

And first of all: There is no need to get involved in electricity at all if you are an amateur. It's dangerous for health.

Personal experience using the Wago terminal block

I did an experiment at home. In a junction box , which is all on an aluminum wire from the developer. Poe bit off the aluminum and assembled everything on Wago terminals.

The input wires that powered the wiring from the shield were placed on separate “vags” and lined with copper. And this is what happened:

Aluminum wire with a cross-section of 1.5 square millimeters and copper 2.5 square, through the wago terminal block. Black with a graphite-solidol thing inside. It seems like the reliability is almost durable, however.

All this is a violation of “PEU”. It worked for 3-4 years and soldering stations, vacuum cleaners, and soldering hair dryers were used with a bang, no complaints. But when I started running a washing machine from the same line, miracles began to happen. Literally, in a month, after 6-8 washes as usual. The junction box: began to sing, groan, characteristically spark and show signs of instability. Several times even the surge protector went into protection (I have it with surge protection).

The alarm for burning and sparking of the wiring on the Wago terminal blocks rang, I climbed inside and what did I see?

The darkness and trash of this junction box reflects the general standard of living) The same wago terminal block that leaked - but continued to work. Connection of copper to aluminum Wago terminal block

BINGO! Everything melted to hell! The whole point is that the connection: copper with aluminum - does not heat up so much under the load of current passing through this connection. As a result, it is clear that the wago terminal blocks have been smashed into mush. Moreover, the copper wire is stuck, and the aluminum dangles like a hair. Of course, the “zero” burned out, but the phase contact also melted.

Types of WAGO terminal blocks

In general, there are a huge variety of terminal blocks and they are produced not only by the WAGO brand, terminal blocks are also made by Legrand and a bunch of other third-party manufacturers, which for some reason have not taken root in Russia. China, of course, does not lag behind and fakes everything with a bang.

The main types of wago terminal blocks are 3 types:

• Reusable terminal blocks - for soft wire;
• “Disposable” with a special paste for mixing aluminum and copper (I call it solid oil-graphite);
• “Disposable” without special paste, the body of which is transparent.

On good terms, all these types are suitable for low-current, fast switching networks, powering: uninterruptible power supplies, power supplies, spotlights, assembling lighting wiring and something from the same low-power series. Well, not for power supply, input wires and power panels with sockets.

Reusable, disposable and wago terminal blocks with paste

How to use wago terminal blocks

There was also a case when I received a call from a production plant outside the city. A small workshop - a sawmill for 5 and a half Uzbeks. Their electricity was constantly cut off, although all loads did not exceed 5-6 kilowatts. And the supply wire had a reserve of 2-3 times. The power supply panel of this workshop had a 32-amp input circuit breaker (freshly installed), but it was also turned off every half hour or hour.

An external examination revealed nothing. And when I already went directly into the contacts, I went nuts. The input wire is aluminum 10 squares, there is also copper 10 squares and there is a copper 3-phase jumper and all this is in one contact of the circuit breaker, of course the plastic melted and caused oxidation to everything that was happening.

But look from the outside, everything is fine - a new machine, the wires are laid, no traces of burning.

This shield was defeated by a brass 3-phase closed busbar. Be that as it may, the connection with bolts, even coupled with aluminum and copper, gave a much better effect than wago terminal blocks. People are happy, the workshop is working non-stop, they called and thanked us, and asked us to rebuild another panel.

Insulated brass busbar for 3 phases for DIN rail

Conclusion on wago terminal blocks

Wago terminal blocks are a good thing, but they are contraindicated for use on power (socket) lines . Use for lighting and light loads please. Although the manufacturer stated: load retention through wago up to 4 kW.

From experience I can say that this connection from the same type of wire (copper to copper) will last for 3-5 years, then the contact will begin to age and deteriorate.

Therefore, emotional twists, sealed with solder without acids and aggressive fluxes, are our everything!

The contact area of ​​the wago terminal block is very loose in twisting. The wago terminal block is burnt and melted. Wago terminal block with grease for aluminum and copper. Melted Wago terminal connecting aluminum and copper.

Source: https://ko-lipe.ru/opyt-ispolzovaniya-klemmnika-wago/

This you need to know: 6 main problems with WAGO terminal blocks

WAGO terminal connections are very common today. However, there are almost as many electricians who hate WAGO as there are those who are delighted with these clamps. And no wonder: here are just a few of the main problems that should be taken into account when using such terminal blocks.

1 Can only be used for lighting

Manufacturer WAGO claims that the clamps can be used for heavy loads (within the rated specifications) by connecting groups of sockets. However, practice shows that terminal blocks are suitable exclusively for lighting groups. Here's an example:

The WAGO 222-413 terminal block for three conductors is designed for a 4 mm2 wire and a rated load of up to 32 A. 32 A is 7 kW. Let's imagine what will happen if you simultaneously apply a load to the clamp of 7 kW, for example, by turning on a 2 kW boiler, a 3 kW heater and a 2 kW kettle. Such a clamp will get very hot and over time will burn like pies forgotten in the oven. Therefore, it is better to use WAGO only for lighting groups, but not in power branches.

2 Cannot be sewn into the wall

WAGO terminal blocks require maintenance, so they must be accessible. In fact, they can (and should) be placed only in junction boxes. Practice has shown that over time the contacts on the pressure plates weaken, so an inspection needs to be done. Under plaster, the clamp may burn over time - expect trouble. If you need to hide a connection in the wall, it is better to use crimping or welding.

3 Many fakes and analogues

There are completely Chinese fakes, which are quite easy to distinguish from the German original by the absence of any inscriptions, while the original indicates the rated voltage, conductor cross-section and connection diagram. Plus, their prices vary greatly, so you can immediately tell whether it’s a real WAGO or a copy.

However, there are also so-called analogues - clips similar to WAGO, where there are all the inscriptions as on the original. However, their filling can vary greatly. For example, the plates on the original German clamps are made of austenitic chrome-nickel steel coated with a 60/40 tin-lead alloy. It is unknown what the analogues are made of, but their durability is much less. There is also a chance that they will burn at the most inopportune moment.

4 High transient contact resistance

In the previous article, we measured the resistance of various connections, and Vago did not perform at its best. Without going into numbers, we note that the resistance of WAGO is 11 times higher than that of a screw terminal block, 6.6 times higher than that of PPE and 1.5 times higher than that of conventional twisting. Of course, in practice, under the influence of external factors, each connection can behave differently. However, the higher the connection resistance, the hotter it gets.

5 Under heavy loads, they melt, not the wires

This cannot be said to be a big problem, since it is the connections that most often heat up, not the conductor. However, there is a video online where, under a load of 80 A, the insulation melts first, and the Vagov clamp, like a liquid terminator, melts last.

Most likely it was removed by the manufacturer himself to popularize the clamp. In practice, everything turns out quite the opposite.

Often, it is the plates in the terminal block that become very hot, which is why the housing begins to melt, and the insulation on the wires is the last thing to do.

6 High price

One of the main problems of WAGO terminal blocks is the high price of clamps. On average, one clamp of a two-wire WAGO 222-412 costs about 20 rubles.

Considering that these clamps are often used for temporary buildings, and after their dismantling they are mostly thrown away (there are reusable clamps), the price increases even more (in terms of price/service life ratio).

Also, the impossibility (or more correctly “undesirability”) of using them for groups of sockets makes them very expensive compared to other types of connections.

Source: https://ichip.ru/sovety/ekspluataciya/eto-nuzhno-znat-6-glavnyh-problem-klemmnikov-wago-697822

Wago terminal blocks. How to use it correctly

Packaging of Vago terminals

I have written more than once about Vago terminals and clamps. Here is my main reference and review article on this topic. I decided to add examples of use and highlight them in a separate article, since I have accumulated a lot of photographs.

I will describe in detail the practical application of these terminal blocks, the pros and cons of each specific case.

I foresee that the topic is very controversial, I won’t be able to explain everything, so I accept criticism and exchange of experience in the comments.

To start -

Basic rules for using Vago

1. For lighting and other circuits limited in current to 10A, the terminals are excellent; you don’t need to know any subtleties. Connected - and let's go!

2. If the current is from 10 to 20 A, you need to think about the cleanliness of the surface of the wires. Moreover, the current must really be limited by the corresponding circuit breaker (10, 13, 16, 20 A), and the wire must have a cross-section of 1.5 or 2.5 mm². Otherwise it might look something like this:

The Vago 773 terminal block with the paste burned out because... the old aluminum wire was not stripped

3. At currents of 25 A or more, I would limit the use of Vago by moving on to crimping, welding or soldering wires. Although, for quick repairs of home electrical wiring, there are no better or more convenient methods than Vago.

How to use Wago 773 terminals at high currents

If I need reliable operation of the Vago 773 connecting terminals at maximum currents (up to 25A), I recommend using the method - strip the wires by 20-30 mm, connect them using the connecting terminal as usual, and twist and insulate the remaining bare parts.

Strengthening Wago 773. Insert the wires

Strengthening Wago. Now we twist it. You can rest assured about contact.

We isolate and quietly seal the contact, its reliability has increased many times over.

Attention! All connection points must be accessible!

Examples of connecting Vago 222 clamps

To begin with, how to install Vago terminals incorrectly, I wrote about this above in the first part of the article.

How NOT to connect Vago clamps. Or: How to beautifully arrange a short circuit using Vago 222 terminal blocks.

How to use Vago 222 terminals correctly

The main thing is to understand that one terminal block is one electrical contact.

How to properly connect Vago 222 clamps

How to properly connect Vago_larger clamps

Now let’s move on from general cases to an analysis of the practical application of these wonderful terminal blocks.

Example 1. How to use Wago 222 terminal blocks

The example shows how easy it is to put things in order in a control panel with automatic machines, where it is a mess, very crowded, there are different wires, and you need to connect more. There is no photo of what was originally, but it may be good. I will consider both the pros and cons.

In the utility room, where everything is made with corrugation, you need to install and connect an additional plastic panel with 4 circuit breakers. Moreover, it must be connected to the existing panel, minimally interfering with it.

It’s correct to say “plastic modular housing”, but I say “shield”, it’s simpler and clearer.

Here is the old panel to which you will connect.

Old electrical panel assembled

What is the main problem with such shields (pictured)? Despite the fact that it is positioned as a housing for 4 circuit breakers (4 modules), 4 circuit breakers fit into it with great difficulty. After all, you still need to connect zeros and grounds. And these are two more terminal blocks. Therefore, you should always leave approximately 20-30% of free space in the shield as a reserve.

The wires of zeros and grounds were connected to plastic terminal blocks with a screw (Lego type), without lugs. And where should I go with my rigid single-core VVG 3x2.5?

Fortunately, German engineers came up with universal clamps Wago 222 , which helped me out. This is how I installed the connections.

An old shield with the cover removed. The wires are connected through Vago clamps

Participating in the connection: multi-core PVA wires with a cross-section of 2.5 (input from the top) and 1.5 mm and single-core VVG 2.5 mm (this goes to my panel, bottom left). If there is another way to connect in this situation, write in the comments.

My shield is installed below, and the connections in it now look like this:

New electrical panel with connections via Wago clamps

Please note, this is important - I chose a panel with 6 modules to install 4 machine modules. There are 3 reasons for this:

1. Space for laying wires, you can leave a small margin;
2. There is somewhere to place the clamps (terminals), you can put the terminals on a DIN rail;
3. For the future, if you need to connect another consumer (not two!), there will be somewhere to install an additional machine.

Close the shield.

New shield assembled. Room sockets, utility room sockets, lighting, boiler.

This is what both shields look like. All the work on installing the panel, automatic devices, connecting wires, laying 4 cables in three corrugations took no more than an hour.

Result - both shields are assembled

The main thing is that the current is limited by the machine to 25 A, the wires are all copper and new, heating will be minimal.

The disadvantage of using Wago 222 connecting terminals this way is that if there is a possible overcurrent, the terminals may begin to melt. Therefore, for peace of mind, it is better to reduce the ratings of circuit breakers.

Example 2: Using Wago terminals to repair electrical wiring

The following example shows how to quickly repair electrical wiring that has been broken with a literal axe. The man tried to twist something himself, set up a short circuit in the house, and then called me:

Quick repair of wiring to an outlet. This is what we have today (C)

Here's how I carried out a quick electrical wiring repair using Wago 773 connecting terminals:

Quick repair of wiring to an outlet using Vago disposable terminals

The phase is wrapped with black electrical tape. Then you need to turn off the electricity, carefully hollow out a place for new connections, and plaster over the whole mess. It is better to insulate the places where the wires enter the terminals with electrical tape before doing this.

How to install a socket in such socket boxes is described in detail in my articles about how to reliably install a socket here and here. Be sure to read!

Example 3. Repair of distribution unit

In this (I don’t dare call it a box) This box of wires has everything - the input from the entrance (wires thinner than one and a half rubles, turning into aluminum, turning into a ball-and-socket screw with single-layer insulation, and rigid wires, and flexible wires, and copper, and luminium.

How did it work? Don't know. The owner called me when he himself caused a short circuit, and the floor of the apartment was left without voltage. At the same time, the entrance Soviet machine gun 25A did not work, which is natural.

I temporarily restored the power (the wires were burned out) by using two Vagos (222 and 773, can be seen at the top of the photo):

Repair of old aluminum electrical wiring. The worst thing is that people lived with this for many years, it was simply covered with plaster, and the machine was set to 25A!

A couple of days later I came again, first threw out everything unnecessary, and figured out what came from where and where. I also threw out the wires from the entrance, I will lay new ones later:

Repair of old aluminum electrical wiring. On the left there are wires - light for the toilet and power supply for the entire apartment. Down – toilet and bathroom switch. On the right is the bathroom light and kitchen power.

Now, using pieces of hard copper wire and Vago terminal blocks for different numbers and different types of wires, I assemble a circuit:

Repair of old aluminum electrical wiring. The VVG3x2.5 cable from the entrance comes from below. Wago 222, Wago 773 with and without paste were used.

Here's what we ended up with:

Repair of old aluminum electrical wiring. Vago helps out great!

Of course, if you do everything wisely, you need to completely change the wiring in the entire apartment. But such a task was not before me.

I am calm about my work and this apartment, especially considering that it is now powered through a 16A circuit breaker. And the most powerful consumers are the washing machine and refrigerator.

Example 4. Wago terminal blocks: how to use when installing a new junction box

I’ll give you an example of how I make connections in a distribution box when installing new electrical wiring.

Here's a cheap option. This is the hallway. Through a 20A machine, a cable with wires with a cross-section of 2.5 mm² comes into the box, and diverges into 1 socket (2.5 mm²), lighting and a bell (1.5 mm²).

Initially, after the plasterers, we have this:

Connecting wires in a new junction box. Let's sign the wires. On the left, a VVG2x1.5 cable for the bell sticks out of the wall. Guess through which terminals I will connect it)?

We strip the wires and determine where we have what. As usual - white phase, blue zero, yellow-green - ground. For switches - white phase, blue first key, yellow-green - second.

Connecting wires in a new junction box. wires are stripped, targets are identified

Connecting wires in a new junction box. The stripped wires are ready for connection.

3-5 minutes - and you're done:

Connecting wires in a new junction box via Vago 773

Close the box with a lid

Now you can plaster and paint or wallpaper. It is important that there must be access to the box, or at least its location must be known. Who knows what could happen in 20-30 years?

Don't forget to check everything!

5. Another example of using Wago 773

Below is a photo showing the use of Wago terminal blocks when disconnecting wires in a junction box.

Application of Vago terminal blocks. Another example

What can you say about this photo?

1. The wire used has a cross-section of 1.5mm2. This means that the circuit breaker through which this box is powered must have a current of 16A, or better yet, 13A.

Wago 773-302 terminal block with paste is adapted for connecting the lamp , which actually holds more current than the orange terminal blocks 773-324 , through which power goes to the sockets. It's better the other way around, if possible.

3. It is better to separate power outlet lines and lighting lines, since currents of different magnitudes flow in them (the difference is an order of magnitude). And accordingly, different circuit breakers for different currents. Another advantage of this connection is that if the machine breaks due to an overload or a short circuit in the socket, the light in the room will remain on.

6. Connecting a call button

The picture is short aluminum, but we need to install a new button for the bell.

We hollow out a recess into which two new small-sized terminal blocks Wago 2273-242 are placed. To them - pieces of one and a half copper.

Application of new small-sized terminal blocks Wago

 Application of stranded wires

As I already said in the articles, stranded flexible wires are connected through Wago 222 terminals with a lever. However, flexible wires can also be connected through disposable 773. To do this, you need to use tips:

Flexible wire with lugs. The two tips on the right are not crimped

The tips are crimped using a special tool; pliers are not enough:

Tips for wires. Crimping in action

After this, you can use flexible wires on the same basis as rigid wires using one type of Wago clamp. For example, like in this photo:

Flexible wire into disposable Wago 773 through lugs

Another bonus is the tool and tips.

Crimping pliers, popularly known as crimping tips

Who doesn’t like IEK, you can use the branded one from Wago

Tips are sold in different sizes

They have different colors for convenience. May vary from manufacturer to manufacturer.

And they can be stored in this case

Download Wago catalog

Below you can download the Wago catalog, which shows different types of terminal blocks and application examples. Beautiful and interesting, I recommend looking through it. As usual, everything on my blog can be downloaded for free.

Our terminal blocks, which are discussed in the article, are on pages 105-107.

Source: https://SamElectric.ru/elektrika/klemmy-wago-primery-prakticheskogo-primeneniya.html

Is it worth using terminal blocks to connect Wago wires?

We have already looked at many existing methods for connecting wires in a home electrical network. And we came to the conclusion that recently electricians have acquired irreplaceable helpers - all kinds of self-clamping terminals. Among all the products existing on the electrical goods market, Wago terminal blocks have proven themselves to be the best. Let's dedicate this article to them and talk about the design, advantages, parameters, types and features of the use of such self-clamping elements.

Device and technical parameters

The terminal is a flat-spring action clamp, which with its entire area exerts pressure on the surface of the wire and does not cause damage. The Vago connecting clamp provides excellent contact due to the highly concentrated clamping force, which creates low contact resistance over the entire contact surface.

To manufacture the current-carrying rail, electrolytic spring-hard copper with a soft tinned surface is used. The surface coating is made with a tin-lead alloy (60% tin and 40% lead), which protects against corrosion for a long time.

For the manufacture of clamping springs, high-quality austenitic chromium-nickel steel is used; it has a very high tensile strength.

Polyamide is used as insulating materials. It has a number of advantages:

• absolutely neutral to corrosive processes;
• it has the property of self-extinguishing;
• is difficult to ignite.

For Vago terminal blocks during operation, the lower temperature limit is -35 °C. The upper temperature indicator for short-term exposure is from 170 °C to 200 °C (depending on the type of terminal block).

Connectors of this type are used not only in household electrical networks, but also in industrial production. Therefore, their technical characteristics have a very wide range of values:

• cross-section of connected wire cores – 0.08-95 mm2;
• operating voltage – 100-1000 V;
• rated throughput current – ​​6-323 A.

Advantages of terminal blocks

Wago terminal blocks have an impressive number of advantages:

1. They do not require any maintenance during operation.
2. There is a separate terminal clamp for each of the connected wires.
3. The connection does not require additional insulation.
4. During operation, self-clamping terminal blocks of this type are absolutely safe, since they completely exclude the possibility of a person touching live parts.
5. At the point of contact, the connection is gas-tight, which eliminates any possibility of oxidation of the exposed wires.
6. To connect wires using such terminal blocks, an electrician does not need to make any additional efforts or have special knowledge and skills. Installation is quick and neat; you don’t even need to use a basic screwdriver. This is a huge advantage in cases where wiring has to be installed in hard-to-reach places and large volumes, or work in poor lighting conditions.
7. The Vago connecting clamp has compact dimensions.
8. If necessary, the connection can be easily redone.
9. Due to the springs, Vago terminal blocks are impact-resistant and highly vibration-resistant.
10. They withstand excess humidity, exposure to aggressive environments (for example, fuels and lubricants) and high temperatures (as they are made from materials of the low-flammability category).
11. Since the spring terminals are adjusted to a specific core cross-section, the applied clamping force is optimal. This eliminates the possibility of thermal deformation or damage to the wires. Thus, Wago terminals provide a reliable contact connection for the entire period of operation.
12. In a distribution box with such connectors, order and aesthetic appearance are always guaranteed.
13. And, of course, a plus that all terminal blocks have is the ability to connect wires made of different metals (for example, copper + aluminum).

The only disadvantage is that the connectors must be located in places accessible for inspection and work at any time. But not only Vagov terminals have this drawback; it is inherent in absolutely all detachable connections.

Types, types, series

The manufacturer Wago has divided all produced terminal blocks into different series. They are classified according to the type of wires for which they are intended. The clamps also differ in that some series are completely filled with paste inside, while others are produced without it.

And one more difference between terminal blocks according to the type of clamp:

• flat-spring (the wire is attached under spring plates);
• CAGE CLAMP (flat clamp);
• FIT – CLAMP (clamping by mortise contact).

Connecting clamp terminal blocks from Wago are most widely used for connecting lamps and for connecting wires in distribution boxes and panels. Let's look at the most popular models.

Features of the 733 series

There is a cheap type of terminal block, which is marked Wago 733. This series is intended for one-time switching of cores. They do not have a lever, and the wire is fixed inside the terminal block using an internal lock; it seems to bite the core and prevent it from moving in the opposite direction.

Terminal blocks of this type are designed for voltages up to 400 V, rated current up to 20 A. They are used to connect single-core wires.

Some models are produced with a paste that performs a protective function and makes it possible to switch aluminum wires (it prevents oxidation). These models are gray in color.

Paste-free clamps have transparent bodies and colored inserts. The model with a transparent body is considered more advanced, as it makes it possible to control the process of connecting the core, as well as the quality of its fixation in the terminal block.

There are two options for connecting copper to aluminum in the 733 terminal block. You buy a clamp without paste and purchase separately conductive paste, which you insert into the socket where you will connect the aluminum core. Or, on the contrary, buy a clamp with paste and carefully clean it in the socket where you will need to insert the copper wire.

The switching process is very simple. The core must be stripped of the insulating layer by 10-12 mm and inserted until it stops.

You can remove the wire itself by twisting it, but you will need to apply considerable force. It is clear that you will no longer be able to use this clamp in the future, since when the wire is removed, the fixing contact of the internal lock is deformed.

Wago 733 series clamps are available in variations from two to eight switched wires.

About episode 733, watch this video:

Features of the 222 series

To connect multi-core wires, terminal blocks of the Wago 222 series are used.

These clamps have a number of advantages over others:

1. They are reusable.
2. The lever mechanism firmly and reliably fixes the wire in the clamp.
3. Quick diagnosis of electrical faults. To test and determine the damaged area, simply remove the wire from the clamp, test the circuit and, if it is working properly, fix the wire back. While twisting for such diagnostics will require removing the insulating layer, unwinding the wires, then twisting them again and insulating them.
4. The terminal blocks of the Wago 222 series have a special rectangular groove through which you can connect the tester probe and call phase-zero and determine the operating state of the contact.

The terminal blocks of this series have orange levers. Switching is also very simple. The lever rises, thereby releasing the spring clamp. The stripped cable or wire is inserted into the hole, after which the lever is lowered and securely fixes the core.

Using this model, you can connect stranded wires to single-core ones. Series 222 is produced without paste, designed for voltages up to 380 V, rated current up to 32 A. It is used not only for lighting devices, but also in junction boxes.

For more information about episode 222, watch this video:

Other series

The 273 series terminal blocks can connect up to three wires with a cross-section from 1.5 to 4 mm2. They are equipped with a paste inside, which makes it possible to work with aluminum wires.

Series 274 is intended for lighting circuits, designed for wire cross-sections from 0.5 to 2.5 mm2. There are models with and without paste (for copper conductors).

Series 243 can rightfully be classified as “micro”; the operating current of such terminal blocks is up to 6 A.

862 series terminal blocks are used to work only with copper conductors; they can connect from two to five wires with a cross-section from 0.5 to 2.5 mm2. The housing of such a clamp can be mounted on any base using self-tapping screws.

Clamps of the s series are also produced; they can be used to connect wires without first removing the insulating layer on the conductors. Their operating principle is based on the use of a mortise contact. This is one of the latest developments from Wago, which significantly simplifies and speeds up installation work.

Some tips for using Wago

If you are going to use such terminal blocks in lighting networks or in any other networks with a current limit of up to 10 A, then use Wago clamps safely, you don’t need to know any nuances or subtleties here.

When using terminal blocks in a network with a load of 10 to 20 A, the cleanliness of the conductor surface plays an important role. In addition, a circuit breaker must be installed in the circuit (10, 13, 16 or 20 A).

For loads above 25 A, it is better to stop using Wago terminal clamps and use soldering, welding or crimping wires.

You can independently increase the reliability of the connecting clamp, for example Wago 733. If your load reaches the maximum value, then proceed as follows. Strip the cores of the connected wires by 20-30 mm and insert them as expected into the terminal block. Now, turning the clamp clockwise, twist the remaining exposed parts of the wires and insulate them. Rest assured, the reliability of such contact has increased several times.

How to distinguish a fake?

The manufacturer Wago has proven itself best in the electrical goods market. To avoid buying a cheap fake, familiarize yourself with the differences between terminal blocks made in Germany and China. First, what you can see immediately in the store during an external inspection of the product:

1. The flags (or levers) on the Chinese terminal block are of a darker (or one might even say dirty) orange hue; in German they are brighter and lighter.
2. At the end of the original product there is a branded inscription “Wago”; nothing is written on the Chinese clip.
3. On the reverse side of the terminal block, the German manufacturer places schematic instructions for use and dimensions for stripping wires. In the Chinese copy, the reverse side is blank, nothing is written or drawn there.
4. On the German terminal block, two values ​​are indicated on the side - operating voltage and rated throughput current. In Chinese, the voltage is only written 250 V.

If you look at the inside of both copies, at first glance everything seems the same. But if you pull out the contact strip, you will see that the Chinese manufacturer has it twice as thin as the German one. The original terminal block does not have a magnetic contact strip, but the Chinese one is attracted to the magnet.

Find out more about fakes here:

We tried to convey basic information on Wago self-clamping terminal blocks to you. There are plenty of places in the home electrical network to use them. Therefore, if you just can’t give up the old old-fashioned twisting method, we advise you to think about more advanced technologies. After all, it’s so simple, fast and, most importantly, inexpensive.

Source: https://YaElectrik.ru/elektroprovodka/wago-klemmniki

How to connect wires with WAGO terminals of different series

In order to ensure a reliable electrical connection of two or more single-core or multi-core wires at one point, it is customary to use special mounting devices called terminal blocks. Today, the most popular company engaged in the creation of special products necessary for connecting current-carrying conductors with different cross-sections is the German company WAGO (Wago).

The company was founded back in 1951 and from the very beginning has been trying to follow a special, individual path of development: the company did not begin to manufacture screw connections, but completely switched to self-clamping spring clamps. They are used to create a safe, vibration-resistant, reliable, maintenance-free electrical clamp connection. This development path is the main concept of connectors.

Next, we will tell you how to use WAGO terminals to connect wires.

What is important to know

WAGO terminal blocks are divided into disposable and reusable. Disposable self-clamping terminals should be used in cases where the electrical connection being created does not require further maintenance. Theoretically, it is possible to dismantle the core, but this will require considerable effort. In addition, there is a high probability of destroying both the connector and the conductor itself.

Reusable connectors are used when it is necessary to create multiple dismountable electrical connections of different cables. The connection mechanism is very simple and looks like this: in a disposable terminal block, the wire must be inserted into the socket, and in a reusable WAGO terminal block, the bare wire must be placed in the hole and the latch must be closed.

Operating Instructions

The company has a very wide range of electrical devices, among which terminals are in particular demand. Among them, the following series should be noted:

• 221 (WAGO universal miniature terminal blocks used in distribution boxes),
• 224 (used when installing electric lighting devices);
• 243 (also used in junction boxes);
• terminal blocks installed on DIN rails, with built-in fuses, circuit breakers, LEDs;
• special connectors used in printed circuit boards;
• distribution terminals in which both a screw and a spring clamp are installed.

However, the most popular terminals are the 221, 222 and 773 series, so if electrical specialists mention WAGO connectors, then they are most likely talking about these three series. People simply call them wags. Note that WAGO terminals can even be 8-wire. Let's consider the design features and options for using terminals of different series separately.

Episode 222 . These terminal blocks are of the construction and installation type. It is rational to use them to create multiple connections of both single-core and multi-core wires. In order for the device to work correctly, a small lever is installed in it to fix the conductors, as shown in the photo below:

Using this lever allows you to easily disconnect the contact if necessary, for example, in case of reconfiguration of the circuit, or when testing the circuit. The terminal block has separate connectors where the conductors are inserted. Before inserting the wire and snapping it into place, first strip off its insulation. The clamp is of the flat spring type. You can learn how to use WAGO 222 series terminals from the video:

Episode 773 . These connectors must be used when creating a one-time connection. Please note that the wires can only be single-core. If there is a need to connect stranded conductors, then for this purpose they are first crimped with lugs.

During production, terminal blocks 773 can be filled with conductive paste, but there are also products without it. The use of this paste prevents oxidation of aluminum wires, which is a significant advantage.

Wago terminals filled with paste are available in black or dark gray, so identifying them is quite easy.

As in the reusable version, the core is inserted here to the limit, but since these vags do not use a special lever, the wires are fixed with an internal clamp.

Source: https://samelectrik.ru/kak-soedinit-provoda-klemmami-wago.html

WAGO for connecting wires: how to use clamps, connectors

Wago connectors are special terminal clamps from a well-known German company that are used to connect two or more conductors in one node. The products were created to make the electrician's job easier.

They are designed in such a way that their installation is reduced to one (for disposable Vagos) or two steps (for reusable ones with a latch). Used in junction boxes and when connecting lighting fixtures.

A distinctive feature of these connectors is the use of Cage Clamp and Fit-Clamp clamps with a flat spring. They are used in everyday life and in industry.

https://www.youtube.com/watch?v=QnTlA_gUUJs

Most often in a professional environment, VAG connectors are used for installing temporary lines. It is not recommended to operate the clamps at maximum load levels; in such conditions, heating is inevitable.

Distinctive features of Wago

They are a small plastic box with a reliable clamping mechanism inside. They are practical and simple.

• When using these products, each electrical wire has a separate terminal.
• The exposed wire is located inside the clamp, so there is no possibility of contact with it.
• Easy to install, even a beginner can handle it.
• During installation, the wires are not deformed due to the fact that the spring terminal adapts to the cross-sectional area of ​​the cable and the appropriate compression force is applied.
• Durable and reliable, resistant to vibrations and shocks.
• Bare wires are protected from oxygen and moisture and do not oxidize.
• Compactness.
• Do not require constant monitoring and maintenance.

It is recommended to install the VAG connections in an accessible location.

What materials does it consist of?

Wago clamps consist of a plastic housing and terminals. The terminals are made of specially tinning electrolytic copper, chromium and nickel steel for springs and dielectrics for transporting conductive elements. Plastic materials made on the basis of linear high-molecular synthetic compounds and thermoplastics act as dielectrics.

Technical indicators
Passing current (A)	Cable cross-sectional area (mm²)	Voltage (V)
From 6 to 232	From 0.08 to 95	From 100 to 1000

Main types of Vago

The clamps of this company are divided into three most popular categories, the main difference between them is the type of spring:

• Flat spring.
• Cage Clamp.
• Fit-Clamp.

Flat Spring Connectors

Convenient for quick installation of a cable line. Reuse of such clamps is not practiced. It is recommended to use for fastening rigid single-core conductors with a cross-sectional area from 0.5 to 4 square millimeters. Use with flexible stranded conductors is allowed, but in this case the wire tips are pressed together.

Such terminals are good in cases where it is necessary to minimize the voltage drop in long conductors, when installing power lines, to distribute the potential of a six-millimeter wire.

Available in two types:

• For copper wires - clamps without filler (paste). Allows you to connect only copper wires with a cross-section of up to 2.5 mm². Terminal blocks for 2–8 cables.
• Universal - connections that allow the use of aluminum and copper wires. In addition, a copper/aluminium connection is permitted. A special contact paste inside the clamp protects exposed conductors from oxygen and water, minimizing the likelihood of oxidation.

Cage Clamp

Most often used to connect lighting fixtures, inductive motion sensors, electric motors, electric machines, meters, pumps, potentials, heated floors, heating devices, blowers, and distribution boxes. You can use stranded wire without ferrules.

Suitable for stranded and single-core electrical wires with a cross-sectional area from 0.08 to 35 square millimeters. You can combine sections of different areas. Cage Clamps are easy to install and have a long service life. These connectors are considered more expensive.

Fit Clamp

Clamps with mortise contact, the electrician does not need to strip the cable insulation before installation. This technology makes connecting wires even easier. Thanks to Fit-clamp, the speed and quality of connection work increases significantly.

VAG connector series

There are a number of Wago connector series. The most popular of them: 224, 243, 273, 773, 2273, 222, 221. Let's look at the most popular of them:

• 773 - clamps for one-time connection, preferably using single-core electrical wires. Available with or without petroleum jelly filling.
• 222 - connectors with a closing mechanism. Supplied without paste. You can combine single-core and multi-core conductors. Withstand voltage up to 380 V, cross-section up to 4 square millimeters.

How to use Wago

The basic rule in working with Vago is the postulate: “One terminal - one contact.” The wires are stripped to 10–12 millimeters. They are then inserted into the connector until the tip rests. If the clamp has a lever, then it must first be opened, and then, when the wire is inserted, the lever snaps into place. Make sure that the exposed wire remains inside the clamp and does not extend beyond it.

Professional electricians recommend:

Do not reuse VAG connectors; if you inserted a wire into a clamp and something went wrong, for example, the exposed part of the conductor was too long, then pull it out, cut it, strip the insulation again and insert it into a new clamp. This approach will guarantee you good contact. In addition, technical Vaseline in the clamps will remain in the required quantities.

Recommendations for installation:

• The total load of all conductors of one line is calculated in advance, and it should not exceed the established values ​​for the connector used.
• Check the following before installation: max. voltage, cross-sectional area, conductor type.
• Recommended for installation in junction boxes only.
• Boxes must be installed in an accessible place so that they can be opened at any time.
• Don't forget to leave extra cable for possible rework. Most electricians recommend leaving 15 cm.
• Marks are usually installed on the connector bodies, which can be used to measure the length of the conductor to be stripped.
• If you need to connect aluminum wires, you need to use technical Vaseline to lubricate the connections, or use Wago, adapted for aluminum.
• For more accurate measurements of indicators, it is recommended to use instruments.

What is better to use, twist or Vago

In an electrical circuit, a break is most likely at the junction of the cables. The cause of the rupture is the occurrence of transition resistance, which most often begins to exceed normal limits when there is poor contact between the conductors. As a result, overheating, insulation melting and short circuit may occur.

In the near past, twists were very popular. Sometimes their ends were soldered or fastened by welding, which significantly extended their service life. Now the technology of twisting wires without sealing or welding the ends is prohibited by the rules of the Electrical Code. Vags have been used for connecting wires relatively recently; they are legal and are considered more reliable and easier to use than twists.

Advantages of Vago over twisting

• Easier to install, do not require experience or special knowledge.
• Universal clamps containing technical petroleum jelly allow you to connect aluminum wires to copper wires.
• It is more convenient in terms of redoing the connection and sorting out the wires, since 10–12 mm of cable is consumed per connection, in contrast to twisting, which requires 10 cm at a time. When twisting a second time, you can find yourself in a situation where you need to relay the entire cable, since the reserve is consumed much faster.
• Does not require additional insulation from moisture and air.
• The contact density does not deteriorate over time.

Advantages of twisting over Wago clamping

• The new twist has better resistance values ​​than Wago.
• Withstands severe loads.
• Can be done without purchasing additional items, tools and equipment. All you need is insulation and pliers.

At first glance, it may seem that twisting is better than Wago, since its resistance indicators are lower, it is done quickly and without the use of additional tools.

Many supporters of twisting appeal to these facts, and also demonstrate clear experiments when they test two connections under extreme load and Vago melts faster than the twisted insulation.

In reality, such experiments only demonstrate the resistance of connections to loads. Nobody conducts experiments on twists that were 10 years old. It is known that due to periodic heating and cooling, twisted cables either expand or contract, so the contact gradually worsens. And the older the twist, the worse the contact and all other indicators. Also, twisting requires skill and experience from an electrician. If it is not done by a professional, the results can be very disastrous.

Conclusion

It is better to use Vago, since it is more difficult to make a mistake in its installation, it is more practical and safer. Such a connection will be more scientifically thought out than amateur twisting.

Source: https://ProFazu.ru/provodka/montazh/vagi-dlya-soedineniya-provodov.html

Wago connecting terminals: types, design, characteristics and connection rules

Wago terminals are rapidly replacing other types of wire connections in electrical engineering. They are suitable for connecting low and medium power consumers. This means they can be used for most types of household appliances and some industrial equipment. Such capabilities have become a prerequisite for the mass use of VAG clamps and the growth of their popularity among specialists.

The main purpose of Vago terminal blocks is to simplify electrical installation. For a normal connection of wires, it is necessary to twist, crimp or solder. This takes up valuable time and effort. The use of Vago connectors allows you to connect wires in a matter of seconds.

Connecting wires using Wago clamps

This leads to secondary tasks that can be achieved using terminal blocks:

• increasing the pace of wiring;
• saving insulating materials;
• greater visibility of electrical wiring for repair personnel;
• possibility of operational switching in the circuit;
• quick replacement of damaged electrical installations.

Design and principle of operation of the block

In the basic configuration, the terminal clamp consists of two parts:

1. Wire clamping mechanism. Made of tinned electrical copper. The purpose of the clamping mechanism is to secure the cable core and maintain reliable electrical contact between the wires.
2. Insulating housing. Made from flame retardant polyamide. Protects people, bystanders and wiring components from contact with the live clamping mechanism.

Wago terminal device

Additionally, Wago terminal blocks can be equipped with marking plates, built-in diodes and protective sealing covers.

The principle of operation is to clamp the wire with a spring. Some connector models have a special lever (often orange) for this purpose. It is needed to open the mechanism and allow the wire to enter the clamping area. For others, it is enough to simply insert the cable with the tip into the spring mechanism, and it will open on its own.

Note. There are Vago grounding terminal blocks. The wires that connect to them are electrically connected to the DIN rail fasteners. Such pads are used strictly only for grounding. They are easily distinguished by the yellow-green color of the case and metal latches. If you connect a phase wire to such a terminal block, there will be a short circuit to ground and a risk.

WAGO Ground Terminal

Characteristics of Wago

Vago terminal blocks are used both in household electrical wiring and in industrial devices. This explains the wide range of their technical characteristics.

The conductive part of the connector is made of copper. This material conducts electricity well without significant heat losses. The copper is coated with a thin layer of soft tin-lead solder. Its task is to maximize electrical contact with the wiring.

Dimensions of terminal blocks of the car

The terminal block insulation is made of overheat-resistant material. It can withstand temperatures up to 200 °C for a short time. This property is necessary from the point of view of fire safety requirements.

Pros and cons of use

Practicing electricians were divided into two categories. Some focus on the advantages of Vago terminal blocks, while others note mainly the disadvantages. In fact, the truth is somewhere between these two opinions.

Advantages of using Vago:

• quick screwless installation;
• a minimum set of necessary tools and materials;
• the terminal block is easy to buy even in a small electrical store;
• neatness and logic of wiring;
• compliance with safety regulations.

Disadvantages of terminal blocks:

• the need for periodic inspection;
• must be visually accessible;
• do not cope well with loads greater than 1 kW;
• high contact resistance;
• risk of overheating and melting;
• high price.

Types of Vago terminal blocks

Different types of terminal blocks have different characteristics and functionality. In practice, three modifications of Vago connectors are most often used:

1. With flat spring.
2. Cage Clamp.
3. Fit Clamp.

With flat spring

Suitable for quick installation work. According to the instructions, this type of terminal block is disposable. Technically, it can be used a dozen times. After that it breaks.

The Wago flat spring clamp is often used for installing lighting networks. This is very convenient, because the work is done under the ceiling. It is difficult to use other connection methods at height.

Flat Spring Clamp

The design of the clamp allows it to connect cables from 0.5 to 4 sq. mm. The wires must be single-core. It is also possible to connect flexible cables consisting of many thin wires. In this case, the tip must be put on and crimped on them.

Available in two modifications:

1. For connecting copper wires only;
2. For copper and aluminum.

Fit Clamp

Designed for express electrical installation work. Their device has a self-clamping mortise contact. This allows you not to remove the insulation from the wire before connecting it. For such convenience, of course, you will have to pay a little extra. But if you need to connect hundreds of wires, then the costs are completely justified.

It is worth noting that for a normal puncture of insulation, it must be fresh and not dry. There may be problems when connecting wiring in subzero temperatures. In such cases, many types of insulation become too hard.

Fit Clamps for connecting wires without stripping the insulation

Terminal block series

The terminal blocks produced by Vago are divided into several series. Each of them involves working in certain conditions. When selecting a series, you should be guided by the following characteristics of wiring or equipment:

• rated voltage in the network;
• maximum effective current;
• temperature, humidity and other environmental conditions;
• quality and reliability of installation.

For lighting networks

This type of connector includes terminal blocks that are suitable for connecting lighting devices. Their feature is low operating current. They are suitable for use in 220 V household networks and meet all fire safety requirements.

Source: https://220.guru/elektrooborudovanie/komponenty/klemmy-wago.html

Wago terminal blocks: types, characteristics + how to use Wago terminal blocks to connect wires

Twisting conductors is considered an outdated connection method that does not meet new electrical safety requirements; soldering and welding are labor-intensive, and crimping requires a special tool.

The easiest way to connect wires is to use Wago terminal blocks - special devices that quickly and easily provide reliable contact, and, if necessary, fixation in the right place.

Let's take a look at the types of terminal blocks and how to install them.

Application Features and Benefits of WAGO

The name “Vago” has long become a household name: almost all spring, self-clamping or lever connectors for wires are called that way.

In fact, this is the name of a brand that produces a wide range of various mounting products for switching single-core and multi-core wires.

Small plastic products differ in design. Depending on the presence of contacts, punching elements or paste inside the housing, they can be used to connect 2 or more wires made of the same or different materials

Convenient devices can be useful at any stage of electrical installation work.

Therefore, even when drawing up the project and making calculations for the estimate, it is necessary to clarify the approximate number of connecting elements required for switching wires in electrical panels, junction boxes, and electrical installation devices.

Options for using terminals:

In fact, terminal blocks can be used wherever a fast and reliable connection is required. But you need to be careful and not install non-removable products where future separation is expected, and vice versa.

Many installers have long switched to optimizing their work - and indeed, they have received only advantages from this:

• installation of electrical wiring is faster;
• installation does not require additional tools or skills;
• terminal blocks are always available for free sale;
• there are many varieties for all types of electrical work, no need to look for substitutes;
• reliable, isolated, protected contact is ensured;
• safety standards are observed.

But there are also disadvantages. The main one is the high price of the products. If you need to replace the wiring in one junction box, the material losses are not noticeable, but when you need to change the wiring in the whole house, buying connectors can cost a pretty penny.

The second disadvantage is the possibility of fire or melting of products. It should be understood that original Vago brand products cannot ignite unless the installation requirements are violated.

Result of improper use. Before installing the terminals, be sure to study the characteristics and find out what current power they are designed for. The risk of fire occurs only when the rules are violated

The second cause of fires is the use of non-original products. Aliexpress sells countless inexpensive electrical products made in China. They only look like Vago terminals; in fact, they are a cheap fake.

It is clear that they are made of unreliable, fusible, fragile, and possibly dangerous materials.

Distinctive features of original Vago products:

• characteristic shade of flags (levers) or body;
• markings on the back;
• diagram and marks for stripping wires on the body;
• the contact strips inside the housing are thick;
• metal parts are not magnetic.

Accordingly, cheap analogues differ in shade and sometimes in characteristic odor. They do not have full markings and marks, and the internal strips are very thin and magnetic.

Review of popular types of terminal blocks

There are several classifications of Vago terminals. They can be grouped by size, purpose, method and place of application. But the most convenient division into categories is considered to be a combined classification, which takes into account both functionality and installation location.

Let's consider the main groups of terminal blocks used for the electrical network. We will not consider terminal blocks with a choke, a capacitor, as well as for transformers and printed circuit boards due to their rare use in domestic conditions.

Category #1 – for lighting equipment

The category includes several types of products designed for connecting spotlights, sconces, chandeliers and other lighting equipment.

Kinds:

• Series 294 and 294 Linect® are used for switching fine-core, single-core and stranded wires without prior preparation. A special plate can be used to relieve tension. Maximum current – ​​24 A.
• The 272 series for wires with a cross-section of 2.5 mm² is divided into insulated and compact terminals.
• The 293 series is distinguished by having a direct ground contact and a snap-on mounting foot.

Source: https://sovet-ingenera.com/elektrika/provodka/klemmniki-wago.html

Wago terminal blocks for connecting wires

It is impossible to imagine electrical installation work without the need to connect wires. Previously, twisting was used for this, at best, supplemented by soldering the resulting contact. This method, which is often used today, requires time and a certain skill.

And the connection itself turns out to be sloppy and cumbersome. A connection based on screw terminals eliminates such problems, but it is not without its drawbacks. If the screw is “undertightened” or “overtightened,” the contact becomes less reliable.

In the first case, the connection point may heat up and even cause a fire in the wiring, and in the second, there is a risk of damage to the wire and the terminal itself. Wago terminal blocks eliminate these and other similar problems.

In this article, I propose to consider the main brands of terminal blocks, their design, advantages over alternative connection methods, and, of course, how to use them in practice. Because young professionals often wonder if they bought Wago terminal blocks, how to use them?

Abroad, the most common terminal blocks for connecting wires are from Wago and are the most used method of connecting wires. Our professional electricians know about them, but use them with caution.

Many people mistakenly believe that such connectors do not create the necessary contact, especially when installing large-section wiring. Meanwhile, this progressive connection method, based on insulated spring clamps, ensures compliance with all requirements for reliability and quality during electrical installation work.

What are WAGO terminal blocks used for?

Everyone knows that during electrical installation there is often a need to connect several wires together at once. In this case, using terminal blocks to connect the wires is the best solution.

Unlike twists or solders, which are essentially permanent connections, Wago terminal blocks allow you to easily and quickly disconnect wires, change the circuit, or connect an additional circuit or device. Of course, in especially critical cases you can use soldering, but for most connections that will work under normal conditions, the use of Wago terminal blocks is quite sufficient.

As already mentioned, working with Wago terminals does not require the use of additional tools. The only thing that may be required is a special tool for stripping the insulation.

After this, the wire is simply inserted into the terminal block and fixed in it. Another important advantage of Wago terminals is that they allow you to reliably connect or extend wires made of different materials and different cross-sections.

As you know, connecting, for example, copper and aluminum conductors using conventional twisting is unacceptable. Among other things, the use of Wago terminal blocks allows you to save space in the distribution box or panel, and the connection itself is neat and reliable.

Wago terminal blocks how to use

Most often, Wago terminal blocks are used in distribution boards and boxes, as well as for connecting lighting or other equipment. They can be used to connect single-core and stranded wires. Depending on the installation location and connection requirements, terminal blocks of various series are produced.

Wago terminals are available in two versions: disposable, that is, they do not allow the wire to be removed back, and reusable, in which it is fixed by retracting a special clamp. How to use wago terminal blocks we will consider both options using the example of the two most popular series.

Wago 222 series terminal blocks are reusable. A special orange lever is used to secure the wire. It allows you to easily disconnect the contact when reconfiguring the circuit or testing the circuit.

Each conductor is inserted into a separate connector socket. The terminal block is based on a flat-spring clamp, which allows fixing conductors with a cross-section of up to 4.0 mm2.

To carry out installation using such a terminal, you should strip the insulation of the wire by about 1 cm, lift the clamp flag, insert the wire and release the clamp.

The connection is ready! Thanks to the compact size of the terminal, it can be placed anywhere, including compact boxes for switches and sockets. Moreover, this type of terminal block does not require crimping of a stranded conductor.

Wago 773 series terminals are designed for single connection and single-core conductors only. Stranded ones can also be connected, but before doing this, their tips should be crimped.

These terminal blocks can be produced with or without filling with a special conductive paste. The paste is used to prevent oxidation of aluminum wires. Paste terminals are easy to identify and are available in black or dark gray.

The connection is made in the same way: the wire is stripped and inserted until it stops. But, unlike the detachable one, there is no lever here, and fixation is carried out using an internal clamp that bites the wire and does not allow it to come out again.

In case of emergency, you can, by twisting and applying sufficient force, remove the wire from the terminal block. But it is strongly not recommended to do this, since this causes deformation of the fixing contact and the reliability of the subsequent connection is not guaranteed.

Benefits of WAGO products

Based on the above, we list the main advantages of Wago terminals:

1. 1. Speed ​​of installation. Stripping the insulation and fixing the wire in the clamp takes literally a few seconds;
2. 2. Connection using Wago terminal blocks, unlike twisting or crimping, does not require additional insulation;
3. 3. The ability to connect conductors having different cross-sections and made of different materials;
4. 4. If necessary, the connection can be easily redone. Twisting wires, especially brittle aluminum ones, does not allow this;
5. 5. The ability to diagnose the circuit without breaking it, since the terminal blocks for connecting wires are equipped with holes for connecting indicators or other devices;
6. 6. Accuracy of installation, ability to make connections in cramped conditions or if the accessible part of the wire is too short.

Many electricians do not use Wago terminals in their work, not wanting to incur additional costs associated with their purchase. This is especially true for reusable terminals, which are almost 2 times more expensive than permanent terminals.

At the same time, most people forget about the time that will be saved when using such products. And the well-known statement “time is money” is directly related to the work of an electrician.

Similar materials on the site:

• Voltage indicator
• How to test wires

Source: https://electricvdome.ru/instrument-electrica/klemmniki-wago.html

How to use Wago terminal blocks to connect wires?

› Electrical wiring › Sockets and switches ›

22.05.2018

According to the technical requirements of the PUE, connections of electrical wires are made only using special blocks or terminal connections. The main condition is the reliability and strength of the connections, on which fire safety and trouble-free operation of the wiring directly depend. Professional electricians use German Wago terminal blocks, which feature a convenient design and connections due to the constant action of the built-in spring.

What are Vago terminal blocks used for?

Unlike similar products from other manufacturers, Wago clamps have a wide range of applications, since they can be used for laying electrical wiring both at home and in production.

A successful design solution makes them safe to operate even in conditions of high voltage and strong electric current.

The body of Wago terminal blocks is made of a special modified polymer that is not susceptible to moisture and is resistant to temperature changes. At the same time, Wago terminals are suitable for wires of various modifications.

Using Wago connecting terminals, you can connect copper and aluminum cables of different sections and types (single-core, multi-core), while ensuring high installation reliability. They are used when laying external and hidden wiring, inside distribution boxes, in places where soldering is impossible due to technological complexity. To connect wires using Wago terminal blocks, just insert the wire into the hole until it stops and snap it into place.

Advantages and disadvantages

German Wago terminals have significant advantages, the main ones being the following:

• clear fixation using a spring, preventing accidental disconnection;
• ease of installation, even in hard-to-reach places and in conditions of poor lighting;
• compact dimensions allowing you to easily hide the terminal in the junction box;
• high impact resistance, resistance to vibration;
• no need for special maintenance;
• easy disconnection if necessary.

Source: https://odinelectric.ru/wiring/rozetki-i-vyklyuchateli/kak-polzovatsya-klemmnikami-wago-dlya-soedineniya-provodov