Answer / jitesh

rating of contactor depends upon amp. carried out of
motor.& it is 1.7 times the motor current.

Answer / anil bhatia

Category Application
AC-1 Non inductive or slightly inductive load-eg:furnace
AC-2 Slipring induction motors:- high starting,
plugging

AC-3 Squirrel cage induction motors:- start and stop

AC-4 Squirrel cage induction motors:- start plugging,
inching
DC-1 Non inductive or slightly inductive load-eg:furnace

DC-2 Shunt motors:-starting, stop

DC-3 Shunt motors:-starting, plugging, inching

DC-4 Series motors:-starting, stop

DC-5 Series motors:-starting, plugging, inching

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