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Thermal Magnetic Circuit Breakers

Thermal magnetic circuit breaker use an automatically operated electrical switch to disrupt the flow of current when an overload or short circuit is detected.  Thermal magnetic circuit breaker attain this by using an electromagnet and bimetallic strips.

The thermal aspect of this type of circuit breaker allows for smaller overcurrents over a longer period of time, but will quickly trip the circuit for larger overcurrents. This is useful in the case of motors, as there will be a small overcurrent each time the engine is switched on for a short length of time, which should not trip the circuit.

Our popular Thermal magnetic circuit breakers are Tesys by Schneider Electric