Voltage Sensing Digital Split Charge Relay

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  • Regular price £34.95
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Digital 125A voltage sensing split charge relay

Allows simple dual battery charging without the need of complicated isolator switch installations.

Ideal for marine or automotive installations with leisure and starting battery requirements.



  • Automatically combines two batteries when charging and isolates the two batteries when not charging
  • No voltage drop comparing to battery isolator diodes (0.6v)
  • Dimensions fit Heavy Duty Modular Fuse Box Series (BF43xx) and Battery Switch
  • Robust Glass Fibre reinforced Nylon enclosure
  • Built-In LED function (On when VSR engages)
  • Port for remote LED indicating VSR status (LED not included)
  • Surface or Panel Mount options provides flexibility when installing


  • Normal Voltage: DC 12v
  • Combine / Open Voltage: DC 13.7v / 12.8v
  • Continuous Current Rating: 125A
  • Intermittent Current Rating: 140A
  • Power Consumption: 10mA (Standby) / 33mA (Engaged)