SDR-120W DIN Rail Mounted Switch Power Supply

The SDR-120W DIN Rail Mounted Switch Power Supply is a high-grade industrial power unit upgraded from the NDR series, built for demanding industrial low-voltage control applications. Equipped with active PFC function, it delivers high power-factor performance and superior energy efficiency up to 91%. Its ultra-slim metal housing saves cabinet installation space and supports tidy internal wiring for DIN-rail mounting.

Beyond standard overvoltage, overload and short-circuit protection, it adds over-temperature protection and supports 105%~150% peak load capacity, handling instantaneous surge loads such as motor start-ups. The built-in DC-OK relay contact provides status feedback for remote system monitoring. It accepts universal wide-range AC input complying with global power-grid standards and ensures stable continuous operation across a broad working-temperature range. Ideal for automation equipment with frequent load fluctuations and high-reliability industrial-commercial projects.

Product Feature

Built-in Active PFC Circuit: Achieves high power factor and reduces harmonic distortion of input power.

105%~150 % Peak-Load Output Capacity: Capable of bearing short-term surge loads, better than standard NDR series.

Multi-dimensional Protection Mechanism: Overvoltage, overload, short-circuit and over-temperature protection functions ensure equipment safety.

DC-OK Relay Contact Output: Provides power-good signal for external system monitoring.

Ultra-Slim Metal Construction: Optimizes cabinet space utilization and supports DIN-rail mounting.

Universal Wide-Range AC Input: Complies with international grid specifications for diverse industrial-commercial applications.

Wide Application Scenarios

The SDR-120W DIN Rail Mounted Switch Power Supply is suitable for industrial automation control systems, power supply for precision sensors, servo auxiliary power, solenoid and motor-driven equipment, building intelligent control hardware, smart wiring systems, security monitoring systems, commercial smart devices and other DC-powered loads.

Thanks to its 105%~150% peak-load tolerance and DC-OK monitoring function, it is especially well-suited for equipment with frequent instantaneous surge loads. As a high-reliability standard power module, it is widely applied in control cabinets, intelligent buildings, automated production lines, process-control equipment and high-standard commercial control systems.

Specification