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Voltage sensing battery isolator relay install#

As a guide this applies to vehicles having engines that comply with Euro5 emissions standards and onward, often also incorporating regenerative braking (if in doubt please consult your vehicle manufacturer to confirm). 24 Volt 100 Amp Voltage Sensing Split Charge Relay / Intelligent VSR Unit 12 - 24 Volt 100 Amp Voltage Sensing Split Charge Relay / Intelligent VSR Unit. 140A Dual Battery Isolator Kit with Wiring. the engine is stopped) the isolator kit disengages from charging the auxiliary. IMPORTANT NOTE: These relays are not suitable for vehicles with 'smart' or 'intelligent' alternators. Find many great new & used options and get the best deals for 12v 100a Battery Separator Isolator/split Charge Relay at the best online prices at eBay. When the voltage of the start battery drops (i.e. Fixing holes in the body allow the unit to be mounted to a bulkhead and body cut-outs offer various cable routing options.įully encapsulated electronics make this unit splashproof and particularly suitable for harsh environments (marine use, vehicle engine bays etc.) Simply connect the +ve terminals on each of your batteries to the terminals on the relay and the black relay wire to a common -ve point.Īn LED indicates when the relay is ON (contacts closed). 12V, 140A rated voltage sensitive relay (VSR) from Durite for split charging applications in camper vans, motorhomes, 4x4s and boats. Note: The benefit of this type of relay is that it does not require a connection to the alternator or any modifications to the existing vehicle electrical system.

Terminal connections marked on inside of unit for easy installation.

Voltage sensing battery isolator relay install#

Well proven design with 1000s of units operating in the field It is recommended that i install a voltage sensing battery isolator relay on my 2018 Ranger to protect the starter battery from power to the and fridge supply.

Protects sensitive electronic equipment from harmful engine start-up spikes.

Maintains battery isolation when not charging, so starter cannot be drained by leisure use and vice-versa.

Relay disconnects when sensed voltage drops to 12.65V or lower.

Relay connects when sensed voltage reaches 13.3V or higher.

Dual sensing operation - charges from starter battery to leisure battery when alternator is running and charges from leisure battery to starter battery when mains charger is connected.Allows charge to flow into one battery (or bank of batteries) only when a charging voltage is detected at the other battery (dual sensing operation). 12V, 140A rated voltage sensitive relay (VSR) from Durite for split charging applications in camper vans, motorhomes, 4x4s and boats.