The Phoenix Contact TMC 81D 20A thermomagnetic device circuit breaker is a compact and reliable solution for overcurrent protection in industrial and commercial applications. Designed for DIN rail mounting on 35mm rails, this 1-pole circuit breaker offers a rated current of 20A and a high short-circuit switching capacity of 10kA, ensuring robust protection against overloads and short circuits. It operates using thermomagnetic principles, combining bimetallic strip and magnetic coil technology to quickly and effectively interrupt circuit faults. The device is UL Listed, confirming its compliance with recognized safety standards. It is commonly used in power distribution systems, control panels, and machinery to safeguard equipment and personnel.