Molded-case circuit breaker

The CMTM3E series electronic molded-case circuit breakers are designed for AC systems operating at 50 Hz/60 Hz, with a rated insulation voltage of 800 V and a rated current up to 800 A, suitable for low-voltage power grids with a rated operating voltage of AC 380 V (400 V). These circuit breakers are equipped with intelligent trip units, offering selectable setting currents and providing three-stage protection: overload long-time delay, short-circuit short-time delay, and instantaneous short-circuit tripping.

Universal circuit breaker

1. The CMTW1 series universal circuit breakers are suitable for AC distribution networks operating at 50 Hz, with rated voltages of AC 400 V and AC 690 V, and rated currents ranging from 400 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. 2. These circuit breakers feature high breaking capacity and zero arc flash, along with a variety of intelligent protection functions. They provide selective protection with precise operation, minimizing unnecessary outages and enhancing the reliability of power supply.

Photovoltaic reclosing

The CMTM5L series residual current circuit breaker with automatic reclosing is a new product developed by our company in recent years. It is an integrated, multifunctional circuit breaker with adjustable overcurrent settings. This device incorporates all the protection functions of an intelligent molded-case circuit breaker—long-time inverse‑time overload protection, short-time inverse‑time short-circuit protection, time‑over‑current short‑circuit protection, and instantaneous short‑circuit protection—while also providing additional protections such as delayed residual current protection, delayed overvoltage protection, and delayed undervoltage protection.