B Type RCCB Residual Current Circuit breaker 4Pole Type B RCD RCCB Residual Current Circuit Breaker Type B RCCBs, in addition to normal AC, can detect high frequency AC and pure DC earth leakage currents. Reducing the risk of fire and/or electrocution through automatic disconnection of the electrical supply relies on the selection of the correct type of RCCB EKL1-63B. Electrical Features Mode Electromagnetic Type(wave form of the earth leakage sensed) B Rated current In 40A,63A Poles 4P Rated voltage Ue 4P 415V~ Insulation voltage Ui 500V Rated frequency 50/60Hz Rated residual operation current(I n) 30mA Rated residual making and breaking capacity (I m) 500(In=2540A) 630(In=63A) Short-circuit current Inc= I c 10000A SCPD fuse 10000 Break time under I n 0.1s Rated impulse withstand voltage(1.5/50) Uimp 4000V Dielectric test voltage at .Freq. for 1min 2.5kV Electrical life 2,000 Cycles Mechanical life 4,000 Cycles Installation Contact position indicator Yes Protection degree IP20 Ambient temperature(with daily average35) -5~+40 Storage temperature -25~+70 Terminal connection type Cable/Pin-type busbar/U-type busbar Automatically disconnect the circuit when earth fault/leakage current occurs and exceeds the rated sensitivity. of power supply and line voltage, and from external interference, voltage fluctuation EKL1-63B single-pole RCCB with two current paths; two-pole RCCB; three-pole RCCB; three-pole RCCB with four current paths, four-pole RCCB Current Circuit Breaker Material:ABS Package Contents: 1 x Circuit breaker