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 of the type of RCCB EKL1-63B. Electrical Features Mode Electromagnetic color: White Material: ABS 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 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 voltage, and free from external interference, voltage fluctuation EKL1-63B single- RCCB with two current paths; two- RCCB; three- RCCB; three- RCCB with four current paths, four- RCCB Current Circuit Breaker Package Contents: 1 x Circuit breaker Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm. Product Notes: Please allow a little manual errors.Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please confirm acceptance before ordering. About Shipping: Please ensure your shipping informations are correct to avoid delivery issues. All orders are shipped within 3 days after payment. Delivery usually takes 8–12 days, The specific delivery time is depend on circumstances. If you have any questions during your purchase, feel free to contact us. We will respond you within 24 hours.