48V 240W DIN Rail Industrial Power Supply (PSDIN-48-240W)


Item #PSDIN-48-240W

The PSDIN Series of Industrial DIN Rail mount high efficiency switching power supplies operate over a wide temperature range of -40C to +70C. There are two models to supply 120W or 240W. The input is 90 to 264VAC auto-ranging with wire terminal connections. The output is 48VDC nominal with an adjustment range from 47VDC to 56VDC. There is a switch for single or parallel operation. Two 240W supplies operating in parallel will provide 480W total power. There is an alarm output to provide a dry contact closure to trigger an alarm if the DC output fails, like during a grid power failure. The relay is closed when DC output is normal and open when DC output is in fault condition due to overload or safety shutdown.



  • High Power and rugged design
  • Short Circuit, Over-Voltage, Over-current Protection
  • 90-264VAC Auto Ranging Input
  • 47~56VDC Adjustable Output
  • -40C to +70C Operating Temperature
  • Supports Parallel Operation
  • Dry Contact DC Alarm


  • Powering PoE Switches
  • IP Phone and Security Camera Systems
  • Telecommunications


Spec Sheet PDF

Input Operating Range

90-264VAC ;  47-63Hz

Input In-rush Current

35A Max

Input Current

4.4A @ 115VAC ; 2.20A @ 230VAC

Output Voltage

47~ 56VDC (adjustable)

Cont. Load Current


Maximum Output Power


Peak Power (10sec @ 220VAC)


Line Regulation

+/- 0.5%

Load Regulation

+/- 1%

Voltage Overshoot


Ripple / Noise

100mV Peak


90% Minimum

Dielectric Strength

1500V rms , 1 min, 10mA Max

Insulation Resistance

10M Ohms


Short Circuit, Over-Voltage, Over-Current, Over Power

Alarm Output (“DC” and “OK”)

1A @ 30VDC, 0.5A @ 125VAC. DC OK = Closed, DC Fault = Open

Safety Standards

GB4943 / EN60950-1

EMI Standards

FCC PART 15 CLASS B, EN55022, EN55024

Harmonic Current

EN61000-3-2 Class D


EN61000-4-x Level 3&4

Operating Temp

-40°C to 70°C (-40°F to 158°F)

Operating Humidity

5% to 95% non- condensing

Storage Temp

-40°C to 85°C (-40°F to 185°F)


200,000 hrs


2000m (6562ft)


10-500Hz 2G 10min Sweep, 20G Surge 11ms

Case Size

135 x 121 x 45mm (5.3 x 4.8 x 1.8”)


0.77 Kg (1.7 Lb)


3 Years

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