Comtrol MeanWell SDR-240-48 DIN Rail Power Supply
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Comtrol Corp.
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High power, high efficiency

Product Information

The Comtrol Mean Well SDR-240-48 DIN Rail Power Supply is an industrial DIN rail power supply with 94% efficiency and built-in protections against short circuits, overloads, over voltage and over temperature. This power supply is ideal for PoE and PoE Plus applications because it provides 48 volts and 240 watts to power multiple high-power devices. With UL 508, industrial control equipment, approval and a wide operating temperature range the Comtrol Mean Well SDR-240-48 DIN Rail Power Supply is reliable in even the most demanding environments.

Product Features
  • Output adjustable from 48-55VDC
  • Rated power 240 watts
  • High efficiency 94% and low power dissipation
  • 150% peak load capability
  • Built-in active PFC function, PF>0.93
  • Protections: short circuit / overload / over voltage / over temperature
  • Cooling by free air convection
  • Can be installed on DIN rail TS-35/7.5 or 15
  • UL 508 (industrial control equipment)approved
  • EN61000-6-2(EN50082-2) industrial immunity level
  • Built-in DC OK relay contact
  • 100% full load burn-in test


  • Enclosure: UL Compliant Fully Isolated Plastic Housing
  • Installation Method: DIN rail (35MM)
  • DIN Rail Spec: TS35/7.5 or TS35/15
  • LED Indicators: Output voltage status
  • Dimensions: 4.9” x 2.5” x 4.5” (H x W x D, Approx.)
  • Product Weight: 2.1 lbs
  • Color: White

Input Specifications
  • Connector Type: Screw Terminals
  • AC Voltage Range:  88 - 264VAC
  • Frequency Range: 47 - 63Hz
  • Power Factor (PF Typ.): =0.93 / 230VAC;  =0.99 / 115VAC
  • DC Voltage: 124 - 370VDC
  • Efficiency (Typ.): 94%
  • AC Current (Typ.): 2.6A / 115VAC; 1.3A / 230VAC
  • Inrush Current (Typ.): 33A / 115VAC at Cold Start;  65A / 230VAC at Cold Start
  • Leakage Current: < 1mA / 240VAC

Output Specifications
  • Connector Type:  Screw Terminals
  • DC Voltage:  48VDC
  • Rated Current:  5A
  • Current Range: 0-5A
  • Rated Power: 240W
  • Voltage Adjustable Range: 48 - 55VDC
  • Voltage Tolerance: ±1%
  • Ripple and Noise (Max): 120mVp-p
  • Output Load Derating: 75% of full load at 70°C
  • Line Regulation:  ±0.5%
  • Load Regulation:  ±1%
  • Set-Up, Rise Time: 1500ms, 60ms/230VAC
  • Hold Up Time (Typ.):  20ms / 230VAC;  20ms/115VAC at Full Load
  • DC OK Relay Contact Rating: 60VDC/0.3A; 30VDC/1A;  30VAC/0.5A resistive load

Protection Specifications
  • Overload Power: 110 - 150% of rated output power for 3 sec.
  • Overload Protection Type: Constant current limiting. Recovers automatically after fault condition is removed.
  • Over Voltage Rated Voltage: 56-65VDC
  • Over Voltage Protection Type: Shutdown output voltage with auto-recovery
  • Over Temperature Rated Temperature: 95°C ± 5°C detection on power transistor heat sink
  • Over Temperature Protection Type: Shutdown output voltage, recover automatically after temperature drops

Environmental Specifications
  • Air Temperature System On: -25° to 70°C
  • Air Temperature System Off: -40° to 85°C
  • Operating Humidity: 20% to 95% non-condensing 
  • Vibration Component: 10 - 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes
  • Vibration Mounting: IEC60068-2-6 compliant
  • MTBF (Mean Time Between Failures): 19.3 Years

Regulatory Approvals
  • Emissions:  European Standard EN61204-3; European Standard EN55022; Class B Limit IEC 1000-3-2/EN61000-3-2: Harmonic; Class A Limit IEC 1000-3-2/EN61000-3-2: Flicker
  • Immunity: European Standard EN61204-3; European Standard EN55024: IEC 1000-4-2/EN61000-4-2: Electrostatic Discharge (ESD), IEC 1000-4-3/EN61000-4-3: Radiated Radio-Frequency (RF), IEC 1000-4-4/EN61000-4-4: Fast Transient/Burst, IEC 1000-4-5/EN61000-4-5: Surge, IEC 1000-4-6/EN61000-4-6: Conducted Disturbance, IEC 1000-4-8/EN61000-4-8: Magnetic field, IEC 1000-4-11/EN61000-4-11: Dips and Voltage Variations
  • Safety: UL60950, UL508
  • Other:  European Standard: 2002/95/EC Directive (RoHS)
  • Warranty: Three Year Limited Manufacturer Warranty 

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Shipping Restrictions
  • This item cannot be shipped to PO Boxes.
  • This item can be shipped only within the U.S.

  • UPC: 783555101735 
  • Mfr's Part #: 32123-1