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 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 or 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 or 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-and40 Storage temperature -25-and70 Terminal connection type Cable or Pin-type busbar or U-type busbar Automatically disconnect the circuit when earth fault or leakage current occurs and exceeds the rated sensitivity. of power supply and line voltage, and free 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 Colour:As Shown Material:ABS Package Contents: 1 x Circuit breaker Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.