TH-K20 series Thermal Relay plug in ac contact S-K20.ON/OFF indication and manual/automatic ... relays comply with IEC292-1 standard.Specification TypePlug in AC contactRated current of Thermal element (A)Setting ... current range(A)TH-K12S-K10,S-K11 S-K12,S-K180.24,0.35,0.5,0. ... -8,7-11,9-13TH-K20S-K20,S-K21 S-K25,S-K352.1,2.5,3.6,5 ... -26,24-34,30-40TH-K60S-K50,S-K65 S-K80,S-K9542,5434-50,43-65 TH-K20 ...