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B type residual current circuit breakers launched successfully.
Datetime: 2018/8/2 11:10:47  Hits: 39
B type residual current circuit breaker (earth leakage protection)

The B type residual current circuit breakers provide protection in the event of a continuous fault current on three-phase networks generated by controllers and variable speed drives;battery chargers and inverters; backed-up power supplies.Type B RCCB protection against fault currents from sinusoidal AC residual currents (AC type) or pulsed DC residual currents (A type). 

Current range of 25A, 40A, 63A, 80A and 125A, leakage current range of 30mA, 100mA, 300mA and 500mA.