TH-K20 series Thermal Relay plug in ac contact S-K20.ON/OFF indication and manual/automatic reset Application ... The thermal overload relays are suitable for overload protection of AC ... (A)Setting current range(A)TH-K12S-K10,S-K11 S-K12,S-K180.24,0.35,0.5,0.7,0 ... 22,18-26,24-34,30-40TH-K60S-K50,S-K65 S-K80,S-K9542,5434-50,43-65 TH-K20 series ...