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Intelligent molded-case circuit breaker

The intelligent molded-case circuit breaker (hereinafter referred to as the circuit breaker) is suitable for AC distribution networks with a frequency of 50 Hz, a rated operating voltage of AC 400 V, and a rated operating current of up to 1000 A or less. It is used for power distribution and for protecting circuits and power supply equipment against faults such as overload, undervoltage, short circuit, and single-phase-to-ground faults.

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The intelligent molded-case circuit breaker (hereinafter referred to as the “circuit breaker”) is suitable for AC distribution networks operating at 50 Hz, with a rated voltage of AC 400 V and a rated current of up to 1000 A. It is used to distribute electrical energy and to protect circuits and power‑supply equipment from faults such as overload, undervoltage, short circuit, and single‑phase ground fault. This circuit breaker features intelligent protection functions and precise selective tripping, thereby enhancing power supply reliability and minimizing unnecessary outages. It is widely applicable in power stations, industrial plants, mines, and modern high‑rise buildings, particularly in the distribution systems of smart buildings.