What are the WAGO terminals?

WAGO terminals are used to connect the wires in the wiring. For electricians, they have become indispensable assistants in their work. And for those who independently make an electrician in the house, such connectors will be to their liking. But, like any electrical product, WAGO terminal blocks differ in their characteristics, so they may not be suitable for every electrical cable and not for every electrical wiring. In this article, we will consider the main types of wagon connectors, as well as their parameters and scope.

Varieties of series

From the first three digits in the marking of the terminal blocks, you can find out which series they belong to. They differ among themselves not only in appearance. Their technical characteristics are also different, which must be taken into account.

Types of WAGO Connectors

The most vulnerable and sensitive area in the wiring is considered to be the connection. After all, if the contact is bad, then this will lead to heating of the wiring and its sparking. As a result - failure of electrical wiring or fire. It is the connector that connects the cable through which electric current passes.

WAGO terminal blocks are reliable wiring harness connectors. In their technology, a screw connection is not used. The connection occurs by spring force. And depending on the spring that is used, the terminals are divided into the following types:

  • flat spring clamp (fasteners under spring plates);
  • CAGE CLAMP clamps (flat clamp fasteners);
  • FIT-CLAMP clamps.

Note: not all wagon terminal blocks can connect aluminum wiring. If the wiring contacts are coated with Al-plus paste, then they can be connected with similar devices.

Flat spring terminal blocks

Used for fast wiring installation. A popular model of this type is WAGO 773. There are two options: without paste for combining copper wires and for connecting wires from aluminum or a mixture of aluminum and copper. The wires are connected using clamping mechanisms that are completely invisible from the outside. Due to this, it is not possible to remove the conductive core.

Dimensions vag 773 series:


With regard to technical characteristics, they are as follows:

Current and Cross Section for 773 Connectors

WAGO 773 terminal blocks are used to minimize voltage losses in long wiring, for power outletthat is located in parallel, as well as for power wiring. The video below describes in more detail what this type of terminal is:

Today, this series has been replaced by the more modern 2273, which allows you to connect wires with a small cross section (from 0.5 to 2.5 mm2). The appearance of WAGO 2273, as well as their main parameters, are provided in the video review below:


Their use does not require lugs on a multicore cable. Terminal blocks are used for connecting chandelier and in junction boxes. Their main advantage is simplicity and reliability in installation.

Popular models of this kind: WAGO 222 and 224 (reusable).Connect copper wiring with a cross section from 0.08 to 35 mm2. Series 222 self-locking terminals with lever clamps are made without paste and are used for wire connection one and several cores with a cross section up to 4 mm2 and voltage up to 380V. If it is necessary to connect aluminum wiring, then the paste must be purchased separately.


Current and section of the vag series 222

Video review of connectors of this type:

WAGO 221 terminal blocks are considered analogues of the 222 series (in the photo below). These are universal spring terminal blocks with levers that are suitable for any copper conductors. The operating conditions of the wagon 221 connector are greatly simplified, since their dimensions are compact. Designed for voltages up to 450V. Used for wires with a cross section of 0.14–4 mm2 and for ferrules 002–4 mm2.

wagon 221

A comparison of the 221 and 222 wagon series is shown in the video:

Terminal blocks 224 - single-core connectors. They allow you to quickly connect lighting fixtures without the use of tools.

Connectors 224

Car Features 224

FIT-CLAMP clamps

The use of such clamps allows the connection to be made without stripping from insulation. They use mortise contact. This is one of the new WAGO developments and it significantly speeds up and simplifies installation. Representatives of this type of terminal block include the 280 and 285 series wagons, as well as 862, which are designed for installation on a DIN rail.



WAGO terminal blocks are made of special tin-plated electrolytic copper, as well as nickel-chromium spring steel. How dielectrics use polycarbonate and polyamide, which are considered carriers of conductive elements.

Such connectors are used both in everyday life and in industrial production. Due to this, there is a wide range of values ​​for each parameter:

  • voltage ranges from 100 to 1000 volts;
  • transmitted current is in the range from 6 to 323 amperes;
  • cable cross-section varies from 0.08 to 95 mm2.

In more detail, the technical characteristics of each type of terminal we have provided in the tables above.

Advantages and disadvantages

Wagon terminal blocks are connecting elements that have their pros and cons. The benefits include:

  • each wire has its own clip;
  • quick and easy to install;
  • no additional insulation required;
  • compact sizes;
  • you can connect conductors with different cross-sections and from different materials;
  • safety in use;
  • high impact resistance, reliability;
  • during operation there is no maintenance of structural elements;
  • if necessary, the connection can be easily redone.

The disadvantages include the fact that, like any plug-in connection, access to the terminal must be preserved.

So we examined the main characteristics, types and series of WAGO terminal blocks. As you can see, there are a sufficient number of connectors of various sizes, so you can choose the right option for your own application conditions.

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