Terminal blocks and their application

Terminal blocks – a necessary attribute in the field of electrification. Thanks to their diversity, can be flexibly configured electrical circuit enclosing the winding, owing to their uselessness, and removing the unnecessary chain.

Connector blocks are made of a dielectric housing and a few screws. In some cases, used a small metal slats (they allow you to conveniently fix the wire in tight spaces).

Terminals – it is an integral part of the supply when carrying out electrical installation and commissioning works. On one side of the terminal block (in accordance with the rules of RB) are allowed to "plant" not more than two wires of the same diameter. Otherwise, the contact is bad, and the wires simply will not crimped.

Often referred to as Terminal blocks screw clamp, terminal, terminal clamp, connecting block or terminal block. These are all names for the same attribute and the specific names are formed based on the location of the terminal block.

The Product enables the connection of solid wires with stranded. In this case, both wires must be attached from different sides of the box, on different screws. Typically, terminal blocks - arbolitovye, however, this dielectric is rather fragile, so instead of Karbolit came more robust counterparts of plastic. Mostly products are used for mounting lighting equipment, household outlets, for connecting the circuits of the terminal protection of power lines.

Today there are several types of terminals:

• Wall;
• Designed for mounting in junction box;
• Designed for mounting the circuit breaker.

In addition, there are terminal blocks with screw and spring-loaded clips.
Materials for building products, too, are different. Pads are made of polyethylene and are used quite widely. They are considered low cost and the separation of live parts by using physical force (for example, with a knife). In the case of the pads there is a special hole for rigid mounting. Most often in the plastic linings all live parts are made of brass, as it is quite good and inexpensive conductor.

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Basically this product is applied for wire connection when installing lighting devices and installing junction boxes. In addition, the terminal blocks of polyethylene applicable when wiring outlets for household appliances.

Modern terminals often are made of polyamide. This material is used in professional equipment, for example, at the signature terminal protection or an important junction boxes control equipment of high voltage.

The polyamide used in such circuits deliberately, because these terminals are quite expensive, but the quality. They are resistant to external impact, and elastic and have high electrical resistance. Which, unfortunately, have no plastic counterparts.

Polyamide has a high breakdown voltage, great resistance of the surface the wandering current, significantly extended range of temperatures at which it is possible to apply the material. In addition, polyamide Kremnica peculiar samarasena, as the material is virtually non-flammable, and contains no halogen impurities.

Nylon pads Usually perform with live nodes from brass that are covered by the electroplating film.