Description
BM30L Series Molded Case Circuit Breaker with Residual Current Protection (hereinafter referred to as Residual Current 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 features overload, short-circuit and undervoltage protection functions to protect circuits and power equipment from damage. Meanwhile, it offers protection against fire hazards that may arise from persistent earth faults which cannot be detected by overcurrent protection.
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/T 14048.1, General rules IEC 60947-2 and GB/T 14048.2, Low-voltage switchgear and controlgear – Circuit-breakers IEC 60947-4-1 and GB/T 14048.4, Contactors and motor-starters IEC 60947-5-1 and GB/T 14048.5, Electromechanical control circuit devices.
