TDK-Lambda - CUS250M Series 2x4 inch 250W AC-DC Power Supplies
19 February 2024
The CUS250M can provide up to 250W in -20 C to +50 C ambient temperatures when conduction cooled without external air.
20 C to +50 C ambient temperatures when conduction cooled without external air. Operation at up to +80 C is also possible with appropriate derating. Utilizing 1m/s external airflow, or the optional integral fan, enables an output power of up to 125W at +70 C. This is possible as the power supplies have efficiencies up to 94%, generating less internal heat. Average efficiency, measured at 25, 50, 75 and 100% loads, is greater than 91%. Offload power consumption is less than 0.5W when the output is inhibited.
Options for the CUS250M include a 5V 0.1A standby voltage, remote on/off (inhibit or enable), DC OK and AC Fail signals and a choice of open frame, U channel, U channel with cover or top mounted fan mechanical constructions.
Features
Up to 250W Utilizing Convection and Conduction Cooling
Operation in Ambient Temperatures of up to 85 C
Medical Certifications (2 x MOPP)
Class B Conducted and Radiated EMI with Significant Margins
Suitable for Class I and Class II installations
Compact 2 x 4 x 1.56 Inch / 50.8 x 101.6 x 39.5mm Size
Enclosure & Cooling Options
EN60335-1 Compliant
Benefits
Quiet Operation
Suitable for High Ambient Temperature Environments
Suitable for B and BF Type Medical Equipment
Easier System EMC Compliance.
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