What the DC 24V coil means for your panel
The Mitsubishi Electric SD-N125ULDC24V is a DC 24V coil contactor, meaning it pulls in and seals on a 24 VDC control supply — common in PLC-driven panels where the control bus is already 24 VDC and you avoid adding a separate AC coil rectifier or transformer tap. Listed under Contactors and Starters, it switches motor loads and resistive heating in industrial control panels, rated for the current class implied by the N125 frame.