Mitsubishi TH-N220RHKP 180A Description Description Mitsubishi Overload Relay. Ith = 140,0 ~ 220,0A; for S(D)-N220 Related products MITSUBISHI FX1N-40MR-DS MITSUBISHI AJ71E71-S3 MITSUBISHI FR-A540-0.75K-EC MITSUBISHI Q02HCPU MITSUBISHI A2NCPU MITSUBISHI MR-J2-40A