supply of 4 pole mccb4 pole mccb,supply and testing of 125 amp, 4 pole mccb, breaking capacity - 36 ka, rated operational v oltage - 550v or higher, 50hz, 3 phase ac, rated insulation voltage - 800v ac or higher, capable to withsta nd 50 degree centigrade ambient temperature, impulse withstanding voltage capacity - 8kv or higher, add itional feature - adjustable thermal magnetic overload release & fixed/adjustable magnetic short circuit rel ease. indication of on/off/tripped with locking arrangement in off position to avoid accidental on positio n conforming to is/iec 60947-1&2 or latest, including enclosure with all necessary accessories. make- l&t/ havells /abb/siemens/c&s/hagers. [ warranty period: 30 months after the date of delivery ] ]