Product Highlights
  • 120W 48V 2.5A of power for PoE switches and other devices with terminal block ports
  • High efficiency 91% and low power dissipation
  • 150% peak load capability
  • Cooling by free air convection
  • UL 508 (Industrail control equipment) approved
  • EN61000-6-2 (EN50082-2) Industrial immunity level
  • Built-in DC OK relay contact
  • 100% full load burn-in test
  • Operating Temperature -25°C~70°C (-13°~158° F)
  • -25°C-70°C

SDR-120-48 is an industrial power supply that provides 120W 48V 2.5A of power over a single output to Ethernet switches, WAPs, and surveillance cameras using a terminal block. The device has a DIN-Rail adapter for easy in-click installation. The power supply uses passive cooling and overload protection and can work at a temperature of -25°C~70°C. It can be used in different industrial environments including factories and outdoor environments.

  • Built-in active PFC function, PF>0.93
  • Protections: Short circuit / Overload / Over voltage / Over temperature
  • Can be installed on DIN rail TS-35 / 7.5 or 15
Output   DC Voltage 48V
Rated Current 2.5A
Rated Power 120W
Peak Power 180W (3 sec.)
Input   Voltage Range 88 ~ 264VAC   124 ~ 370VDC
Frequency Range 47 ~ 63Hz
AC Current (Typ.) 1.4A/115VAC   0.7A/230VAC
Protection   Overload Normally works within 110 ~ 150% rated output power for more than 3 seconds and then shut down o/p voltage
>150% rated power, constant current limiting with auto-recovery within 3 seconds and shut down o/p voltage after 3 seconds
Over Voltage 56 ~ 65V
Protection type : Shut down o/p voltage, re-power on to recover
Environment   Working Temperature -25 ~ +70℃ (Refer to "Derating Curve")
Working Humidity 20% ~ 90% RH non-condensing
Storage Temperature, Humidity -40 ~ +85℃, 10 ~ 95% RH
  Safety Standards Ul508, TUV EN60950-1 approved;(meet EN60204-1)
EMC Emission Compliance to EN55011, EN55032 (CISPR32), EN61204-3 Class B, EN61000-3-2,-3
EMC Immunity Compliance to EN61000-4-2,3,4,5,6,8,11, EN55024, EN61000-6-2 (EN50082-2), EN61204-3, heavy industry level, criteria A,
SEMI F47, GL approved
Others   Dimension (WxHxD) 40 x 125.2 x 113.5 mm (1.57 x 4.9 x 4.47 in)
Packing 0.67Kg; 20pcs/14.4Kg/1.16CUFT




Ordering Information

Model Description
SDR-120-48 DIN-Rail 120W, 48VDC, Industrial Power Supply with PFC Function


*Specifications subject to change without prior notice.

File Name Release Date Download
SDR-120-48 Datasheet 2021-09-02
SDR-120-48 Photo 2021-09-02




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