Your energy co-pilot: travel with your mind completely freed from electrical constraints

Do you find managing the different batteries in your van too complicated and time-consuming? Every van owner knows this mental gymnastics. It's precisely to give you absolute peace of mind that the CSB40-SP split charge relay was designed! The true brain of your electrical installation, it handles all these decisions for you, completely automatically and safely.

This intelligent unit is much more than a simple battery coupler. It centralises and optimises all your energy sources. When you're driving, it uses the alternator's power to simultaneously and intelligently recharge your starter battery and your auxiliary battery, whilst powering your fridge thanks to its dedicated output.

Once stopped, it automatically switches to your solar panels or your 230V charger if you're connected to the mains. Its mission is simple: to ensure your batteries are always in peak condition and that you never run out of power, without ever risking draining your starter battery.

Easy to install, it operates completely autonomously. It's the "fit and forget" solution that brings you comfort, safety and maximum autonomy to enjoy every moment of your journey.

Technical specifications of the CSB40-SP split charge relay

• Product type: Multi-source energy manager / Intelligent split charge relay
• Maximum charging current: 40 A
• Supply voltage: 12 V
• Parallel relay: max 50 A
• Fuses: starter 30 A, fridge 20 A, auxiliary 20 A
• Compatibility: 2x 12 V batteries with max capacity 150 Ah
• Managed energy sources: Alternator, solar panel, 230V battery charger
• Specific outputs: 1x dedicated output for powering a fridge (3-way)
• Operating principle: Fully automatic management of coupling and charging of batteries (starter and auxiliary) based on active energy sources.
• Protection: Isolates the starter battery when the engine is stopped to prevent any discharge.
• Recommended use: Ideal for complete electrical installations in vans, converted panel vans and motorhomes, requiring centralised and optimised management of different current sources.

Wiring diagram