Power Supply Unit MEAN WELL SDR-960-24

The MEAN WELL SDR-960-24 is a 960 W metallic power supply unit designed for industrial control and DIN-rail installation. It accepts AC input from 180 to 264 VAC, provides a nominal 24 V DC output with a 130% peak load capability (peak power 1248 W) and includes built-in active PFC compliant with EN61000-3-2. The unit has a slim 110 mm width, low power dissipation with up to 94% efficiency, and an MTBF of 69,800 hours. It meets safety and immunity standards including EN60950-1, UL508 and EN61000-6-2, and is delivered after 100% full-load burn-in testing.

Advantages

The SDR-960-24 offers high efficiency (up to 94%) and a slim 110 mm profile suitable for space-constrained enclosures. Built-in active PFC improves mains compatibility while the constant current limiting circuit and multiple protection functions (short circuit, overload, over voltage and over temperature) provide reliable operation. The unit supports current sharing up to 3840 W (3+1) for scalable power, includes a DC OK relay contact for external monitoring, and is approved for industrial control equipment (UL508).

Suitable for

• Industrial control panels and automation systems
• DIN-rail mounted power distribution in machinery cabinets
• Applications requiring high-efficiency 24 V power and current sharing
• Systems needing EN61000-6-2 level immunity and UL508 approval

Key specifications

• Brand: MEAN WELL
• Model: SDR-960-24
• Output power: 960 W (1248 W peak, 130% peak load)
• Output voltage: 24 V DC
• AC input range: 180–264 VAC
• Efficiency: up to 94%
• Dimensions (W×D×H): 110 × 150 × 125.2 mm
• Cooling: convection (no fan)
• Protections: short circuit, overload, over voltage, over temperature
• DIN-rail mounting: TS-35/7.5 or 15
• Approvals/standards: UL508, EN60950-1, EN61000-6-2, EN61000-3-2 (PFC)
• Current sharing: up to 3840 W (3+1)
• MTBF: 69,800 hours

How to use

Install the PSU on a TS-35/7.5 or 15 DIN rail inside a suitably ventilated electrical cabinet, ensuring free air convection around the unit. Connect the AC input to a 180–264 VAC source and verify proper wiring and grounding according to local electrical codes. Connect the 24 V DC outputs to the load, and if higher power is required, configure parallel current sharing up to four units (3+1) following the manufacturer's instructions. Monitor the DC OK relay contact for external supervision and ensure the environment stays within rated temperature limits.

Recommendations

For reliable long-term operation, keep the PSU in a clean, well-ventilated enclosure, avoid obstructing airflow, perform wiring checks before energizing, and follow MEAN WELL guidelines for paralleling units and protection settings.