Mitsubishi TH-N220RHKP 180A Description Description Mitsubishi Overload Relay. Ith = 140,0 ~ 220,0A; for S(D)-N220 Related products MITSUBISHI A1ADP-SP Mitsubishi FX2N-16EYT-ESS/U MITSUBISHI FR-PU04 MITSUBISHI FX0-30MR-ES MITSUBISHI FX0-20MR-ES Mitsubishi FX2N-32ET-ESS/UL