1.be used to remotely make and break the line 2. ... system of AC 50Hz(or 60Hz),rated working voltage up to 230V,and in a line of application class ... with rated working voltage up to 230V and rated working current up to 20A. It is used to remotely make and break ... 1,AC-7a,AC-7b) conventional heating current(A): 20(AC-1,AC-7a,AC-7b) control power(KW ... 1,AC-7a),1.2(AC-7b) KC1-20 1P,2P Household AC Contactor