Narva Voltage Sensitive Relay 12V 140A

Keep your house battery topped up without draining your starter with this 12V 140A Narva Voltage Sensitive Relay. It’s a smart bit of kit for any campervan conversion, letting you safely charge a second battery while you drive. Simple to wire, reliable in all weather, and ready for rugged van life.

Benefits:

• Automatically connects and disconnects batteries at safe voltage thresholds.

• Protects your starter battery from accidental discharge.

• A must-have for dual battery campervan conversions.

• Compact size makes it easy to fit behind seats or under the bonnet.

• Tough build handles road vibration, salt air, and heat.

• Works with AGM, gel, calcium, and standard lead acid batteries.

Features:

Designed with campervans and off-grid setups in mind, this relay monitors voltage levels and switches connection on or off without manual input. When your van's engine runs and voltage climbs, it links the starter and house batteries to allow charging. Once parked and voltage drops, it safely isolates them to prevent drainage. This means no toggling switches or worrying about flat batteries. Installation is straightforward for DIYers, and its weather-resistant housing holds up in wet, dusty, and bumpy conditions. Ideal for coastal missions, alpine adventures, or everyday van builds.