Thermal Magnetic Circuit Breaker Definition. This function trips the circuit breaker with no intentional time delay. While the generated heat reaches a certain value the thermally sensitive bimetallic strip bends tripping an actuator that breaks the circuit.
Phoenix Contact Thermomagnetic Device Circuit Breakers from www.phoenixcontact.com
A thermal circuit breaker is nothing but a bimetallic strip which uses the thermoelectric principle of heat generated while current passes through metals or for that matter any conductors. Thermal magnetic circuit breakers contain two different switching mechanisms a bimetal switch and an electromagnet. In american homes today thermal magnetic circuit breakers are the most common type.
Thermal magnetic circuit breakers contain two different switching mechanisms a bimetal switch and an electromagnet.
In circuit breakers with both short time and instantaneous pickup the instantaneous pickup will override the short time pickup if the instantaneous pickup is set at the same or lower setting than the short time pickup. This function trips the circuit breaker with no intentional time delay. While the generated heat reaches a certain value the thermally sensitive bimetallic strip bends tripping an actuator that breaks the circuit. These are circuit breakers which utilize two components to detect electrical faults.
