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          Compact Switching Power SupplyMS2 series


          Output Current 4.5 A, 100 W

          [Discontinued model]

          This model has been discontinued.

          Recommended Replaceable Products
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          Input conditions

          Input voltage

          85 to 264 VAC (50/60 Hz), 120 to 340 VDC*1


          47 to 63 Hz, DC*2


          Input current (100/200 VAC)

          1.6/0.9A or less

          Power factor (100/200 VAC)

          0.99, 0.95 (typ.) at maximum load

          Efficiency (100/200 VAC)

          76 to 81% typ.

          Leakage current (100/200 VAC)

          0.4/0.75mA or less

          Rush current (100/200 VAC)

          18, 36 A or less (with a +25°C cold start)

          Output characteristics

          Rated voltage


          Variable voltage range


          Rated current

          Ripple/noise voltage

          1% (p- p) or less

          Input fluctuation

          0.4% or less

          Load fluctuation

          0.7% or less

          Startup time

          1300/700ms or less (AC100/200V)*3

          Output holding time

          20 ms min. (100 to 240 VAC)


          Overcurrent protection

          5.3 A or more

          Overvoltage protection



          Display power

          2-digit 7-segment LED (character height: 10 mm)

          Power off memory time

          Approx. 10 years (at 20°C)

          Display resolution


          Applicable standards

          Safety standards

          UL1950, UL1012, CSA C22.2 No.95095, EN60950, EN50178

          EMC standard

          FCC Part 15 B Class A, EN55011 Class A

          Limits for harmonic current emissions


          Environmental resistance

          Insulation resistance

          100 MΩ min. (with 500 VDC megohmmeter)
          (across input and output terminals) (across input terminals and PE terminal)

          Ambient temperature

          -10 to +55 °C (No freezing) (See "Output conditions".)

          Storage temperature

          -20 to +70 °C (No freezing)

          Relative humidity

          25 to 85 % RH (No condensation)

          Withstand voltage

          3.0 kVAC, 50/60 Hz, 1 min (across input and output terminals)
          2.0 kVAC, 50/60 Hz, 1min (across input terminals and PE terminal)
          500 VAC, 50/60 Hz, 1min (across output terminals and PE terminal)

          Vibration resistance

          10 to 55 Hz, Double amplitude 1.5 mm or less, 2 hours in each of the X, Y, and Z directions
          (1 G when attached to a DIN rail)

          Shock resistance

          300 m/s2, 2 times for each direction of 3 axes


          Approx. 560 g

          *1 When applying for safety standards are 100 to 240 VAC, 50/60 Hz.
          *2 The rated input voltage and rated frequency when applying for safety standards are 100 to 240 VAC, 50/60 Hz.
          *3 Defined with a rated input voltage of 100 VAC or 200 VAC at 100% load.
          *4 The H Series is a cutoff type. To return, turn OFF the input power supply and after leaving it off for 1 minute or more, plug in the input power supply again. The E/F Series is a Zener diode clamp type. It will not restart after the protection circuit operation.



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