Factory price thermal breaker in Sydney

Thermal circuit breakers (circuit protectors, resettable fuses, circuit breakers for equipment protection) are ideally suited to overload protection of motors, transformers, magnetic valves, on-board electrical systems and low voltage lines.

RS is your trusted partner for high-quality thermal breakers. We offer a wide selection of thermal breakers from leading brands like Eaton, Schneider Electric and Siemens. Our comprehensive range includes thermal magnetic circuit breakers and thermal automotive circuit breakers to meet your specific needs.

The trip time of thermal circuit breakers depends on the height and of the duration of the overload current and the ambient temperature. With higher current ratings, the bimetal or hot wire is heated up until the defined trip time is reached and the device ensures genuine physical isolation of the contacts.

Thermal breakers rely on a bimetallic strip made of two different metals bonded together. When excess current flows through the circuit, the bimetallic strip heats up and bends due to the differing thermal expansion rates of the metals.

Selecting the correct thermal breaker is essential to ensure optimal protection for your electrical circuits and equipment. It involves careful consideration of several key factors: Current Rating: The current rating specifies the maximum current the breaker can handle continuously without tripping.

Unlike fuses, which require replacement after tripping, thermal breakers can be easily reset once the fault is cleared, minimising downtime and maintenance costs. Enhanced Protection: Certain thermal breakers, such as thermal magnetic circuit breakers, incorporate both thermal and magnetic trip mechanisms.