Mitsubishi SD-N21 32A 3-Pole Magnetic Contactor 24V DC 2NO+2NC for MS-N Series

The Mitsubishi SD-N21 (SD-N21) is a 32A, 3-pole magnetic contactor from the MS-N series, intended for Direct-On-Line (DOL) and full-voltage non-reversing motor starting. It has a 24Vdc control coil and two normally open plus two normally closed auxiliary contacts for status, interlock, and control circuits. The contactor is UL listed and rated for 32A and 10HP at 480Vac three-phase, so it can switch motors, pumps, fans, conveyors, and other three-phase loads in control panels. Screw-clamp terminals with finger-protection covers simplify wiring, and DIN-rail or surface mounting with a 63mm frame width helps fit compact enclosures. The SD-N21 uses the N21 frame size and is designed for MS-N series contactor applications. It is a standard, non-reversing contactor for industrial motor-control circuits that require reliable DC coil operation.