Universal circuit breaker

The HGW1 series universal circuit breakers are suitable for AC distribution networks with a frequency of 50 Hz, rated voltages up to and including 1000 V, and rated currents ranging from 200 A to 6300 A. They are used to distribute electrical power and protect circuits and power‑supply equipment against faults such as overloads, undervoltage, short circuits, and single‑phase ground faults. These circuit breakers feature intelligent protection functions and precise selective tripping, enhancing power supply reliability and minimizing unnecessary outages. Additionally, they are equipped with an open communication interface that supports remote monitoring, control, measurement, and signaling, thereby meeting the requirements of dispatch centers and automation systems.

Molded-case circuit breaker

The HGM1E series molded-case circuit breakers are among the new-generation products developed and engineered by our factory, incorporating internationally leading design and manufacturing technologies. With rated insulation voltages of 800 V and 690 V, they are suitable for AC circuits operating at 50 Hz, with a rated operating voltage of 400 V and a rated current up to 1250 A, and are designed for infrequent switching operations and occasional motor starting. These circuit breakers feature overload long-time inverse‑time protection, short-circuit short-time inverse‑time protection, short-circuit short-time definite‑time protection, instantaneous short-circuit protection, and undervoltage protection, effectively safeguarding both the circuit and connected equipment from damage.

Miniature circuit breaker

The HG45-63 series miniature circuit breakers feature a cutting-edge design, reliable performance, high breaking capacity, and an attractive, compact appearance. Their enclosures and key components are made from impact-resistant, highly flame-retardant materials. They are suitable for applications with AC frequencies of 50 Hz or 60 Hz, rated operating voltages of 400 V and below, and rated currents ranging from 1 A to 63 A. Primarily used in office buildings, residential properties, and similar structures, these devices provide overload and short-circuit protection for lighting circuits and electrical equipment. They can also be employed under normal conditions for infrequent circuit switching.