Mitsubishi SD-T21 DC24V 2A2B Magnetic Contactor for MS-T Series 287527

The Mitsubishi 287527 (SD-T21 DC24V 2A2B) is a 3-pole magnetic contactor from the MS-T series, designed for direct-on-line (DOL) and full-voltage non-reversing motor control. It uses a 24 V DC operating coil and includes 2 normally open plus 2 normally closed auxiliary contacts (2NO+2NC), making it suitable for switching three-phase motors and related control circuits in industrial machinery. The contactor is rated 11 kW at 440 V AC in AC-3 duty, with a rated operational voltage of 690 V and rated current of 23 A at 380-440 V AC-3. Screw-clamp terminals with finger protection simplify wiring, while the compact T21 frame measures 63 mm wide, 81 mm high and 108 mm deep and weighs approximately 0.594 kg. It can be combined with compatible MS-T series accessories such as TH-T25KP thermal overload relays and side- or front-mounted auxiliary contact blocks for expanded control and protection. Typical uses include motor starters, pumps, fans, conveyors and other three-phase loads in control panels and machines that require reliable DC-coil switching.