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(I△n) :30,100,300mA
Rated residual making and breaking capacity (I△m):500A(In≤40A),10In(In>40A)
Short-circuit current Inc= I△c:10,000A
Break time under I△n :≤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
It ensures instantaneous tripping (without time- delay).