Industrial power supply for electronics requiring stabilised DC voltage – 3-phase AC input voltage. Designed and tested according to norm EN60950 and approved by UL. Standard models with universal input voltage (3x340-575 VAC) and adjustable DC output voltage (typical -10% and +15%. Short circuit proof and protected against overload. Fixed installation, easy snap-on assembly on 35mm DIN-rail. The switch mode technology provide compact design, high efficiency and low residual ripple (less than +/-0.5%). Metal cased IP20. The WRA models are especially designed for industrial control systems, process automatic and industrial applications requiring stabilised DC voltage.