B40SR12424 series DC-DC converters

The B40SR12424 series wide input voltage single isolated output DC-DC converter from Delta is a box type power supply that can provide a 300 W, 12.4 V regulated DC output voltage with a full load efficiency of up to 88.3% at 48Vin. Protection features include undervoltage lockout, output overcurrent limiting, short circuit, overvoltage, over temperature and input reverse polarity, while it has an integrated fuseholder and on/off function. Additionally, the series possesses outstanding electrical and thermal performance, as well as high reliability under extremely harsh operating conditions.

Bel Power Solutions MELCHER rugged 3U cassettes


  • Wide input voltage range, 18~60V
  • 200W output @ 18V~27V Vin range(for A/B/C/D/H)
  • 300W output @ 27~60V Vin range (for A/B/C/D/H)
  • 300W output @ 18V~60V Vin range(for DP)
  • Full load efficiency up to 88.3% @48Vin
  • Intergrated fuse holder (option)
  • Parallel connection of multiple units
  • Box type package with metal base plate
  • Package Dimension: 190.0x76.0x44.0mm (7.48”x2.99”x1.73”)
  • Operating temperature range - 40°C to +75°C
  • CE Mark
  • EMC compatible: EN12895, CISPR11 ClassA
  • Input reverse polarity protection
  • Minimised nrush current
  • Input UVLO, output OCL, short circuit protection,
  • OVP, OTP
  • Enable on/off (optional)
  • 2250VDC isolation
  • IP67 protection for selected models
  • RoHs compliant
  • ISO 9001, ISO 14001 certified manufacturing facility
  • UL60950
  • Electrical transient conduction: ISO7637-2
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