TH-K20 series Thermal Relay plug in ac contact S-K20. ... contactRated current of Thermal element (A)Setting current range(A)TH-K12S-K10,S-K11 S-K12,S-K180.24,0 ... ,S-K65 S-K80,S-K9542,5434-50,43-65 TH-K20 series Thermal Relay plug in ac contact S-K20 ...