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 throug4h automatic disconnection of the electrical supply relies on the selection of the correct type of RCCB. Application Example: EV & PV installations, Frequency converters, UPS installations, High-frequency power converters, Building site power supply cabinets Mode : Electromagnetic Type(wave form of the earth leakage sensed): B Rated current In :25,40,63,80,100A Poles:2P,4P Rated voltage Ue :2P 240V~,4P 415V~ Insulation voltage Ui :500V Rated frequency :50/60Hz Rated residual operation current(In) :30,100,300mA Rated residual making and breaking capacity (Im):500A(In40A),10In(In40A) Short-circuit current Inc= Ic:10,000A Break time under In :0.1s Rated impulse withstand voltage(1.5/50) Uimp : 4000V Dielectric test voltage at ind.Freq. for 1min :2.5kV Electrical life : 2,000Cycles Mechanical life : 4,000Cycles FunctionControl electric circuits.Protect people against indirect contacts and additionalprotection against direct contacts.Protect installations against fire hazard due to insulation faults.Residual current circuit breakers are used in housing, tertiarysector and industrySelectionDetectable wave formB claTripping is ensured for sinusoidal AC residual currents pulsed DCresidual currents,alternating residual sinusoidal currents up to1000Hz, pulsating direct residualcurrents and for smooth directresidual currents, whether applied suddenly or increasing slowly.Tripping sensitivity30mA -additional protection against direct contact.Tripping timeInstantaneous