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20 W power supply units

Key features

  • high reliability confirmed by twenty years of operation as part of the onboard equipment of Russian Railways locomotives 
  • interchangeability with similar DC/DC converters of non-Russian origin
  • built-in capacitors
  • high efficiency — at least 70%
  • mean time between failures — at least 20,000 hours
  • guaranteed life — 3 years
  • average service life — at least 15 years
  • guaranteed period of storage — 1 year

Operation conditions 

  • operating temperature range: -40 to +60 °С
  • vibration: 5—150 Hz, 10 m/s² (1 g)
  • high temperature/humidity — 100% 

Modifications

DesignationRated input voltage, VInput voltage range, VOutput voltage, VLoad current, max., AInsulation resistance,  MΩ, not less than
MP-30-24/15.5 24 18—36 15.00 ±0.30 (channel 1)
5.00 ±0.20 (channel 2)
1.20 (channel 1)
0.35 (channel 2)
100
MP-30-48/15.5 48 36—75 15.00 ±0.30 (channel 1)
5.00 ±0.20 (channel 2)
1.20 (channel 1)
0.35 (channel 2)
200

 

ParameterValue
Output power 20 W
Output voltage at ±2% accuracy
— сhannel 1 15 V
— сhannel 2 5 V
Output overcurrent limit 1.2—2 A
Input-output insulation strength 500 V
Input-enclosure insulation strength 500 V
Insulation strength between channels 300 V
Dimensions, up to 140х82х18 mm
Weight, up to 200 g

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