Motor Circuit Breaker for Overload & Short Circuit Protection | UL/CE Certified

The motor circuit breaker from Yueqing Huilong is a robust protection device designed to safeguard electric motors from electrical faults, combining overload, short-circuit, and in some models, phase-failure protection. This breaker features a modular design with thermal-magnetic tripping elements, where the thermal component responds to gradual overloads and the magnetic component trips for instantaneous short circuits. It offers a wide current range (0.1-100A) with adjustable settings, allowing precise matching to motor ratings. The breaker’s DIN rail-mount configuration (17.5-100mm widths) enables flexible installation, while clear terminal markings and trip indicators simplify setup and maintenance. Constructed with impact-resistant housing (UL94 V-0), it performs reliably in harsh industrial environments, protecting motors in manufacturing, food processing, and construction sectors.