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          Compact Switching Power Supply

          MS2 series

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          Model

          MS2-H50

          MS2-H75

          MS2-H100

          MS2-H150

          MS2-H300

          Input conditions

          Input voltage

          85 to 264 VAC, 110 to 370 VDC*1

          Frequency

          47 to 63 Hz, DC*1

          Inputconditions

          Input current (100/200 VAC)

          1.3/0.7A or less

          1.9/0.9A or less

          2.1/1.3A or less

          2.2/1.1A or less

          3.9/1.8A or less

          Efficiency (100/200 VAC)

          82, 85% typ. (at 100% load)

          Leakage current (100/200 VAC)

          0.4, 0.75 mA or less (at 100% load)

          Rush current (100/200 VAC)

          25, 50 A or less (at 100% load with a +25°C 77°F cold start)

          18/36A or less

          Output characteristics

          Rated voltage

          24V

          Variable voltage range

          ±5% (with V.ADJ)

          Rated current

          2.1A (Class2)

          3.2A

          4.5A

          6.5A

          12.5A

          Ripple/noise voltage

          180mV (p-p) or less

          Input fluctuation

          0.4% or less

          Load fluctuation

          1.5% or less

          Temperature fluctuation

          0.02%/°C or less

          Startup time

          500 ms or less (when the ambient usage temperature is between 0 and +55°C 32 and 131°F with rated I/O conditions)

          Output holding time

          20 ms or more (when the ambient usage temperature is +25°C 77°F and with rated I/O conditions)

          Protection

          Overcurrent protection

          Constant current drop method, automatic recovery, 2.7 A or more

          Constant current drop method, automatic recovery, 4.0 A or more

          Constant current drop method, automatic recovery, 5.3 A or more

          Constant current drop method, automatic recovery, 7.9 A or more

          Constant current drop method, automatic recovery, 15.6 A or more

          Overvoltage protection

          Activates at 26.4 V or more, voltage interruption method, recovers when input is applied again*2

          Display

          Display power

          3-digit 7-segment LED (character height: 10 mm 0.39")

          Power off memory time

          Approx. 10 years (at +20°C 68°F)

          Display resolution

          0.1A/0.4V /1%

          Applicable standards

          Safety standards

          UL: UL508, UL60950-1; C-UL: CSA C22.2 number 14-M95, CSA C22.2 number 60950-1-03; EN: EN60950-1, EN50178; IEC: IEC60950-1

          EMC standard

          FCC Part 15 B Class A, EN55011 Class A, EN61000-6-2

          Limits for harmonic current emissions

          EN61000-3-2*3

          Other

          Parallel operation

          Possible (requires OP-42207)*4

          Series operation

          Possible (requires external diode)*4

          Cooling method

          Natural air cooling

          Environmental resistance

          Insulation resistance

          100 MΩ or more at 500 VDC
          (between input and output, between input and FG, and between output and FG)

          Ambient temperature

          -10 to +55 °C 14 to 131 °F (No freezing) (see the derating characteristics)

          Storage temperature

          -20 to +70 °C -4 to 158 °F (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 57 Hz, Double amplitude 0.3 mm 0.01", 57 to 500 Hz, 19.6 m/s2 (2 G), cycle: 5.5 minutes, 2 hours in each of the X, Y, and Z directions

          Shock resistance

          Peak acceleration: 300 m/s2, 2 times in each of the X, Y, and Z directions

          Weight

          Approx. 270 g

          Approx. 470 g

          Approx. 490 g

          Approx. 700 g

          Approx. 1,540 g

          *1 The rated input voltage and rated frequency when applying for safety standards are 100 to 240 VAC, 50/60 Hz.
          *2 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.
          *3 For the MS2-H100, this is applicable only when the load ratio is 70% or less.
          *4 The applicable standards do not apply for parallel and serial operations.

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