In addition to the general requirements of IEC 60077-2, IEC 60077-3 gives the rules for circuit-breakers, the main contacts of which are to be connected to d.c. power and/or auxiliary circuits. The nominal voltage of these circuits does not exceed 3 000 V d.c. according to IEC 60850.
IEC 60077-3 Ed. 2.0 b:2019
Original price was: $234.00.$117.00Current price is: $117.00.
Railway applications – Electric equipment for rolling stock – Part 3: Electrotechnical components – Rules for DC circuit-breakers
International Electrotechnical Commission , 10/25/2019
Pages: 58
