B Type RCCB Residual Current Circuit breaker4Pole Type B RCD RCCB Residual Current Circuit BreakerType 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 FeaturesMode Electromagneticcolor: WhiteMaterial: ABSType(wave form of the earth leakage sensed) BRated current In 40A,63APoles 4PRated voltage Ue 4P 415V~Insulation voltage Ui 500VRated frequency 50/60HzRated residual operation current(I n) 30mARated residual making and breaking capacity (I m) 500(In=2540A) 630(In=63A)Short-circuit current Inc= I c 10000ASCPD fuse 10000Break time under I n 0.1sRated impulse withstand voltage(1.5/50) Uimp 4000VDielectric test voltage at .Freq. for 1min 2.5kVElectrical life 2,000 CyclesMechanical life 4,000 CyclesInstallationContact position indicator YesProtection degree IP20 temperature(with daily average35) -5~+40Storage temperature -25~+70Terminal connection type Cable/Pin-type busbar/U-type busbarAutomatically 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-pole RCCB with two current paths; two-pole RCCB; three-pole RCCB; three-pole RCCB with four current paths, four-pole RCCB Current Circuit BreakerPackage Contents:1 x Circuit breakerOnly 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.