... series Thermal Relay plug in ac contact S-K20.ON/OFF indication and manual/automatic reset Application ... relays are phase-failure protection, temperature compensation, ON/OFF indication and manual/automatic reset.The relays ... current range(A)TH-K12S-K10,S-K11 S-K12,S-K180.24,0.35,0.5,0 ... ,7-11,9-13TH-K20S-K20,S-K21 S-K25,S-K352.1,2.5,3.6, ... 26,24-34,30-40TH-K60S-K50,S-K65 S-K80,S-K9542,5434-50,43-65 TH- ...