Mitsubishi SD-Q11DC24V DC Interface Contactor 24 VDC 4 kW 1NO for PLC Transistor Output

The Mitsubishi SD-Q11DC24V (SD-Q11DC24V) is a compact DC interface contactor from the SD-Q series, designed to be driven directly by a 24 VDC, 1 A transistor output from Mitsubishi PLCs and compatible control systems. Its DC-operated coil lets the contactor be switched without an additional interposing relay, simplifying control-panel wiring in PLC-driven motor circuits. The three-pole contactor is rated 9 A and delivers 3 kW at 220–240 V AC or 4 kW at 380–440 V AC, with one normally open auxiliary contact for signaling or interlocking. Screw-clamp terminals, 50/60 Hz operation, an ambient temperature range of -10 to 40 °C, and IP20 protection make it suitable for use inside standard industrial control cabinets. The compact housing measures approximately 45 x 51 x 66.5 mm, helping save panel space in dense installations. Typical applications include motor starting and load switching in machine tools, packaging equipment, material-handling systems, and other automated machinery where a PLC output must operate a contactor directly. It is a practical replacement for SD-Q series contactor positions requiring a 24 VDC coil and 4 kW rating.