supply of miniature circuit breaker, 63amps etc.miniature circuit breaker, 63amps etc.,miniature circuit breaker, 63amps, isi marked, instantaneous tripping range: c, four pole with 3pp(pp=protected pole), 415v ac, conforming to is/ iec: 60898-1:2015, with rated circuit current c apacity 10ka, fixed unadjustable time current characteristics and suitable for use in protection of indus trial, commercial and domestic installations. mcbs shall be suitable for 50 hz ac main supplies and hav e facility for termination of aluminium cable. mcbs shall have fixing arrangement for mounting on steel rails of top hat section rail th:35- 7.5, conforming to is/iec 60715:2017. [ warranty period: 30 mont hs after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]