Mitsubishi SD-T12-DC24V-1A1B Magnetic Contactor for MS-T Series

The Mitsubishi SD-T12-DC24V-1A1B (SD-T12-DC24V-1A1B) is a magnetic contactor from the MS-T series, T12 frame size, with a 24 V DC control coil and a non-reversing, direct-on-line design. It is used in low-voltage motor control panels and full-voltage non-reversing motor starter circuits to switch three-phase loads. The contactor has 3 poles, 1 normally open and 1 normally closed auxiliary contact, and screw-clamp terminals with finger protection. Its ratings include 12 A at 380-440 V AC-3 and 5.5 kW at 440 V AC-3 (IEC), with a rated operating voltage of 690 V and rated impulse withstand voltage of 6 kV. It supports 50/60 Hz systems, mounts on DIN rail or a flat surface, and is rated IP20. The compact unit measures 43 mm wide, 75 mm high, and 100 mm deep, with a net weight of about 0.42 kg. Typical uses include direct-on-line motor starting, motor starter assemblies, and other three-phase load switching in control cabinets.