supply of supply, fitment & testing of spares suitable for air compressor working.supply, fitment & testing of spares suitable for air compressor working.,supply, fitment & testing of spares suitable for air compressor working. consisting of: - 1) co ntactor ml-12, 415 v ac, 2no + 2nc aux. contact, 50 hz motor duty 300 amp. ac 3, 250 amp. ac 4 make: l&t, siemens, abb or its equivalent with isi certification. qty= 01 nos. 2) contactor ml-6 415 v ac, 2no + 2nc aux contact, 50 hz, motor duty- 110 amp. ac 3 and 125 amp. ac 4 make: l&t, siemens, abb or its eq uivalent with isi certification. qty=03 nos. 3) coil suitable for 3 tf 53 contactor, coil voltage 110 v, 50 hz and 132 v 60 hz model: 3ty7523-oafo make: siemens, l&t, abb or its equivalent with isi certification. qt y=04 nos. [ warranty period: 30 months after the date of delivery ] ]