Fanless AC/DC switching power supply delivers up to 400W

The Protek Power PUB200/250/300/400 Series of AC/DC switching power supplies is now available from Power Sources Unlimited (PSU). The units are capable of delivering 200-400W of continuous power with convection cooling and are ideal for industrial applications including but not limited to automation, process control and system control, says the company. The PUB Series are housed in a small 7.93 x 4.13 x 1.59 inch perforated metal case for cooling and feature a terminal strip connection for simplicity of installation. Features include universal input range of 90-264VAC with single output options, wide operating temperature of 0-70C, line regulation ±0.5% maximum at full load, and operating efficiencies up to 94%. Compliant with EN 55022 and FCC Class B emissions, offer active PFC to meet IEC 61000-3-2 Class A and D. Comprehensive protection circuitry against over-voltage, over-current and over-temperature is inherent in the design. All units are RoHS compliant.