Description
BM3L Series Molded Case Circuit Breaker with Residual Current Protection (hereinafter referred to as Circuit Breaker) has a rated insulation voltage of 800V. It is suitable for AC 50Hz circuits with a rated operational voltage of 400V and rated operational current up to 630A, for infrequent switching and infrequent motor starting.
The circuit breaker is equipped with overload, short-circuit and residual current protection functions to protect circuits and power equipment from damage. It also provides protection against earth faults that may cause fire hazards.
This circuit breaker can be installed vertically or horizontally.
Reverse feeding is not permitted. Terminals 1, 3, 5 shall be connected to the power supply side, and terminals 2, 4, 6 to the load side.
It is suitable for isolation applications (but it is different from disconnectors).
This product complies with the following standards: IEC 60947-1 and GB 14048.1, General rules IEC 60947-2 and GB 14048.2, Low-voltage switchgear and controlgear – Circuit-breakers IEC 60947-4-1 and GB 14048.4, Contactors and motor-starters IEC 60947-5-1 and GB 14048.5, Electromechanical control circuit devices
