supply of motor contactor of 1500 amps rating with 6 auxillarymotor contactor of 1500 amps rating with 6 auxillary,motor contactor of 1500 amps rating with 6 auxillary contact block to ty pe no tcp 3421-25-2m (with modified silver bit inserted tips) to clw drg no 0twd 112-001 alteration-12 and 4twd-112-043 alt-4 and confirming to clw spec 4tes- 110-001 alt-4 wit h modified silver bit inserted, fixed and mobile contact tips to clw drg. no.3twd 112-01 0a alt-4 and 3twd 112.116a alt-4. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]