BFMM1L series residual current circuit breaker is mainly applicable to the distribution network with AC 50Hz.rated voltage of 40oV and rated current of 80oA Indirect contact protection can also be used to prevent fire hazard caused by equipment insulation damage and ground fault current, and can be used to distribute electric energy It can also be used for infrequent line switching and infrequent motor starting.Conventional with residual current The working power sampling of the leakage protection module of the protective circuit breaker is two-phase, and the circuit breaker of this series is three-phase. If one phase is missing, the leakage protection module of the circuit breaker will still work Can work normally: The rated residual operating current and maximum breaking time can be adjusted on site according to the actual situation;When the phase voltage is reduced to 5ov, the leakage protection module can still Normal operation;With leakage alarm output function. Compliance with standards:GB/T14048.2

Model And Meaning

1. （1）The circuit breaker for power distribution has no code; Circuit breaker for motor protection is indicated by 2 (fill in D)
2. （2）No code for direct operation of handle; Electric operation is represented by p; Manual operation is represented by Z.

Functional Features

The electric circuit breaker is a new electronic leakage circuit breaker imported and absorbed from abroad. The working current of the leakage protection module is sampled in three phases, and the leakage module can still work normally in case of power shortage in any phase The installation size is the same as that of molded case circuit breaker BFMM1L, Mitsubishi NF and other products. Therefore, the installation is in good condition.Small size, high segmentation ability, short arc, strong anti-interference, etc. With leakage action indication, the remaining The residual leakage electric action current (MA) is adjustable in three gears and the time is adjustable in three gears. Can be installed for customers, shunt, auxiliary,alarm, undervoltage and other accessories.