The ePOWER VSR or Voltage Sensitive Relay is essential for systems that are connected to more than one battery.
Available in 140amp (Start Assist), 140amp and 160amp models. Higher current carrying capacity compared to Redarc SBI12 (only 100A) and fully sealed electronics.
Comes with a free Midi fuse holder and fuse of your choice (chose from 30A, 40, 50A, 60A, 70A, 80A, 100A, 175A, 200A - please specify in the cart comments which size you want).
With a set point of 13.3vdc for connection, and a disconnection voltage of 12.8vdc, the VSR has 140amps of current capability and dual voltage sensing for bi-directional charging. When the engine is started, starting and auxiliary batteries are separated allowing only the starting battery to be charged. When the charge voltage reaches 13.3 volts the voltage sensitive relay engages allowing both starting and auxiliary batteries to be charged. This is indicated by the red light in the top LH corner being illuminated.
When the engine is stopped and the battery voltage falls below 12.8 volts the voltage sensitive relay or “VSR” disengages separating the start and auxiliary batteries. The auxiliary battery continues to power any accessories without risk of draining the starting battery.
The Enerdrive VSR “Voltage Sensitive Relay” also has “Dual Sensing” which senses the voltage of both batteries. If either battery is receiving a charge, e.g. a battery charger is connected to the auxiliary battery; the VSR will engage and charge both batteries.
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