Circuit Breaker Functionality & Accessories

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Circuit Breakers are an automatically operated electrical switch designed to protect an electrical circuit from damage caused by excess current from an overload or short circuit.

In other words they are designed to interrupt the flow of electrical current when specific conditions of time and current are reached.

Those conditions generate heat, and circuit breakers are designed to trip (open the circuit). Before this heat damages either wiring.

However circuit breakers are not intended to protect the electrical equipment. Which may have its own built-in protection or mitigation system. But are intended to protect the wiring and connectors, which would otherwise have no such protection.

Furthermore, Circuit Breakers Functionality & Accessories are made in varying sizes. From small devices that protect low-current circuits or individual household appliances, up to large switchgear designed to protect high voltage circuits feeding an entire city. Therefore the generic function of a circuit breaker, RCD or a fuse, is an automatic means of removing power from a faulty system, often abbreviated as OCPD (Over Current Protection Device).

MS3320 Single pole thermal circuit breaker push pull

These lightweight single-phase circuit breakers are available in a range of sizes, from 1 AMP to 20 AMP.

This standard is available in many optional configurations:

  • MS3320-xL = Extra-long control button
  • MS3320-ExV = high vibration

Example of designation

EN3773 single Pole, temperature compensated

Firstly these single-phase circuit breakers are available in a range of sizes, from 1 AMP to 25 AMP.

Example of designation


Secondly, the three-phases circuit breakers are available in a range of sizes, from 1 AMP to 20 AMP.


And full range of accessories are available upon request such as :





  • MS26574
  • MS3320
  • BACC18
  • EN2995
  • EN2495
  • EN2996
  • EN3661
  • EN3662
  • EN3774
  • VG95345
  • NSA931322

Tagged on: BACC18 EN2495 EN2995 EN3661 EN3662 En3774 EN996 MS26574 MS3320 NSA931322 VG95345

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