48V 120W DIN Rail Industrial Power Supply (PSDIN-48-XXXW)

48V 120W and 240W DIN Rail Industrial Power Supply.


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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. 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
  • Extended Temperature Range -40C to 80C
  • Supports Parallel Operation
  • Dry Contact DC Alarm


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


PSDIN-48-120W PSDIN-48-240W
Input Operating Range 90-264VAC ; 47-63Hz
Input In-rush Current 35A Max
Input Current 2.2A @ 115VAC ; 1.10A @ 230VAC 4.4A @ 115VAC ; 2.20A @ 230VAC
Output Voltage 47~ 56VDC (adjustable)
Cont. Load Current 2.5A 5A
Maximum Output Power 120W 240W
Peak Power (10sec @ 220VAC) 240W 360W
Line Regulation +/- 0.5%
Load Regulation +/- 1%
Voltage Overshoot <5%
Ripple / Noise 100mV Peak
Efficiency 90% Minimum
Dielectric Strength 1500V rms , 1 min, 10mA Max
Insulation Resistance 10M Ohms
Protection 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
EMS 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)
MTBF 200,000 hrs
Altitude 2000m (6562ft)
Vibration 10-500Hz 2G 10min Sweep, 20G Surge 11ms
Case Size 135 x 121 x 40mm (5.3 x 4.8 x 1.6”) 135 x 121 x 45mm (5.3 x 4.8 x 1.8”)
Weight 0.59 Kg (1.3 Lb) 0.77 Kg (1.7 Lb)
Warranty 3 Years



Weight 1.7 lbs
Dimensions 6 × 6 × 3 in

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