The applicable category is specified according to the different characteristics of the different control objects of the contactor during operation. AC-1 Non-inductive or micro-inductive load, resistance furnace AC-2 Starting and breaking of wound induction motors AC-3 Starting and breaking of cage induction motors during operation AC-4 Starting and reverse connection control of cage induction motors Turning or reversing, inching AC-5a Discharge lamp on and off AC-5b Incandescent lamp on and off AC-6a Transformer on and off AC-6b Capacitor bank on and off AC-7a Low inductance for household appliances and similar purposes Load AC-7b Household motor load AC-8a Motor in a hermetic refrigeration compressor with manual reset overload release AC-8b Motor in a hermetic refrigeration compressor with automatic reset overload release
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