Float Charger 250W 12V 24V for Motorhome / Campervans

  • Based on our SR250A. Industrial range
  • Low cost fanless 12V model especially for motorhomes
  • Can be used as PSU or float charger
  • Constant current limit
  • Standalone – benchtop or fixed mounting
  • Fuse for reverse polarity protection
  • Designed, made and serviced by Helios Power Solutions
  • 24 Months Warranty

Accessories Supplied

  • Mounting feet together with screws
  • AC power cord 1.5m with IEC320 socket and NZ/Aust plug
  • DC screw terminal plug-in connector


250W PSU/Float Charger Motorhome / Campervans


Operating input voltage range: 180 – 264V, 45-65Hz
Optional 88 – 132V , 45-65Hz (internal link select)
Output Power: 250W (derate to 210W for 12V at above 30degC)
Output Voltage: See series table
Efficiency: > 85%
Operating Temp: 12V: 0 to + 30°C ambient  (derate to 210W at 40°C)
24V: 0 to + 50°C ambient
Isolation: 1KV DC input – output / earth
Cooling: Convection cooled
Dimensions: 150W x 61H x 242D (excl. terminals)
Weight: 1.7kg


Model Input Output  V Output A Power W
SR250K12X 180 – 264V 13.8V* 18A 250W
12V 20A
SR250K24X 180 – 264V 27.6V* 9A 250W
24V 10A

* Default Settings