KRB: RCCB – Type B
















Quick Details




Certificate: CB,CE,SEMKO    




Report: CB test report       




PA66 cover: Fire resistant         




Enclosure color:  Grey           




Installation: Din Rail mounting      




Terminals: pillar type         




Tripping Characteristics: B curve,C curve            










Packaging & Delivery




1 piece/inner box,30 inner box/carton.




Colorful box will be designed according to your requirement.




Ningbo/shanghai Port










Function and feature




KRB type B RCCB for which tripping is ensured as for type A and in addition for smooth D.C residual currents, residual D.C currents which may result from rectifying circuits and high frequency A.C residual currents KRB type B tripping conditions for frequencies up to 1kHz are defined.




It provide protection in the event of continuous fault current on three-phase networks generated by:
Controllers and variable speed drives;
Battery charges and inverters;
 Backed-up power supplies.










Technical Data




Number of Poles:  2P  4P




Standards: IEC/EN61008   IEC/EN62423




Rated Voltage(Un):   230V  400V




Rated Impulse Voltage (Uimp): 4Kv




Rated Frequency(f): 50/60Hz




Rated Current(In): 25,32,40,63,80A




Rated Residual operating current(In): 30,100,300,500mA




Frequency response range(F): 0-1000Hz




Rated conditional short circuit current(Inc):10kA




Rated making and breaking capacity: Im=800A




Rated residual making and breaking capacity: Im=800A




Max.back-up fuse for short-circuit current(Iv): 63A(In=25-40A)
                                                                            80A(In=63-80A)




Type of residual current tripping: type B




Terminal capacity(S): 1-35 mm2




Max break times: ≤40mS




Mains connection: Either top or bottom




Ambient temperature: -25℃+55℃




Storage temperature: -30℃+60℃




Tightening troque: 3.0Nm




Catalog No.
                                                                                                                                                                                                                            CTN Size:47.5*25*18cmIn(A)2P 30mA2P 100mA2P 300mAQTY/BoxQTY/CTN　Model No.Model No.Model No.PCSPCS25AKRB 225030KRB225100KRB22530013040AKRB240030KRB240100KRB24030013063AKRB263030KRB263100KRB263300130　　　　　　In(A)4P 30mA4P 100mA4P 300mAQTY/BoxQTY/CTN　Model No.Model No.Model No.PCSPCS25AKRB425030KRB425100KRB42530013040AKRB440030KRB440100KRB44030013063AKRB463030KRB463100KRB463300130