Mitsubishi PARTS S-N20 MAIN CONTACT KIT BH739N300 Description Description Mitsubishi Main contact kit. For S-N20, S(D)-N21; Replacement kit for 3 poles Related products MITSUBISHI FR-A540-0.75K-EC MITSUBISHI A1ADP-SP Mitsubishi FX2N-48ER-ES/UL MITSUBISHI MDS-A-SPJ-22 MITSUBISHI A985GOT-TBA-EU Mitsubishi FX2N-32ET-ESS/UL