... Thermal Relay plug in ac contact S-K20.ON/OFF indication and manual/automatic reset Application The thermal ... ,4-6,5.2-8,7-11,9-13TH-K20S-K20,S-K21 S-K25,S-K352.1,2.5,3 ... ,24-34,30-40TH-K60S-K50,S-K65 S-K80,S-K9542,5434-50,43-65 TH-K20 series Thermal Relay plug in ...