Green power supplies for communication

The GWS500 500 W power supply by TDK-Lambda Americas is designed for industrial, broadcast, and communications applications while fulfilling the energy saving requirements of the ErP Directive.


The GWS500 by TDK-Lambda Americas is designed for industrial, broadcast and communications while fulfilling the energy saving requirements of the ErP. Courtesy: TDK-Lambda AmericasTDK-Lambda Americas introduced a new line of “green” 500-watt power supplies that comply with the European energy saving requirements of the ErP (Energy related Products) Directive. Ideal for use in industrial, broadcast, and communications applications, the GWS500 series power supplies employ innovative design techniques to combine high efficiency, high power density and low standby power consumption (<0.5 W, no-load) with the confidence of a 5-year warranty.

This is a 500W ac-dc, forced air-cooled power supply that achieves up to 90% efficiency, dramatically cutting the heat generated in industrial, LED, display/signage, IT, traffic controls, automated service, kiosks, test & measurement, and audio/video applications.

Featuring a 4.1 x 8.6 inch footprint and 1.6 inch height, the GWS500 is the smallest product in its class and well suited for fitting into 1U enclosures. Rated at 500W, this series is offered in six models with nominal outputs of 5 V, 7.5 V, 12V, 24V, 36V and 48V. To accommodate non-standard system voltages the GWS500’s output is user-adjustable, either via the built-in adjustment potentiometer or by injecting an external programming voltage. Where peak power is needed, for example for motor start-up, the 24 V and 36 V models can deliver up to 600 W for 10 seconds. The supply can be operated at full load from -25 C to 50 C ambient temperature and up to 70 C with suitable derating.

These power supplies include overvoltage, overtemperature and overcurrent protections. Also included are 5 V/0.3 A standby output, remote on/off, and dc good signal, as standard.

The GWS500 is UL/EN/IEC 60950-1 safety certified (2nd Edition) and carry the CE mark. All models meet EN61000-4-X immunity and EN61000-3-2 harmonic correction standards.

TDK-Lambda Americas

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