This Vw Sprinter conversion focuses on a robust electrical system designed for off-grid, boondocking adventures. The build prioritizes a reliable power supply for essential appliances and devices, utilizing a dual inverter setup, solar charging, and a comprehensive distribution system.
Powering the VW Sprinter: Dual Inverters for Versatile Power Needs
The core of this electrical system lies in its dual inverter configuration. A Victron Phoenix 12/500 PSW inverter provides continuous power for everyday needs. This “always-on” inverter powers essential devices through a 4-way AC distribution block, ensuring each circuit has individual fuse protection using UK-style fused plugs. A 16mm cable, larger than typically required for a 500VA inverter, ensures ample current delivery. The fourth output on this inverter powers a 240V AC refrigerator.
A second, 1000W inverter handles high-power demands like cooking. This inverter powers an induction hob, electric grill, and slow cooker. A 100A remote relay and a wired on/off switch provide convenient control over this high-power inverter, activating it only when needed. An automatic transfer switch seamlessly switches between inverter power and shore power when available, ensuring a consistent power supply to kitchen appliances.
Harnessing the Sun: Solar Charging with a Victron MPPT Controller
A Victron 100/30 MPPT solar charge controller maximizes solar panel efficiency. This high-end controller offers advanced features, including Bluetooth connectivity for monitoring and configuration. The SmartSolar version with built-in Bluetooth provides seamless integration and data access.
AC and DC Distribution in the VW Sprinter
The AC system includes four circuits: a dedicated circuit for a battery charger (currently repurposed), a circuit for kitchen appliances powered by either shore power or the 1000W inverter, a circuit for electric heating in the passenger seat base, and the continuous circuit powered by the Victron 12/500 PSW inverter.
For shore power connection, a conveniently located external IEC 60309 (commonly known as a “Commando Plug” in the UK) socket allows for easy hookup. The DC distribution system utilizes a 12-way fuse box fed by a fused 16mm cable, providing power to various high and low-level circuits throughout the van. A secondary fuse box under the passenger seat powers devices in the cab area.
Safety First: Master Disconnect Switch for the Battery Bank
A crucial safety feature is the master disconnect switch for the battery bank. This switch isolates the battery from the rest of the system, ensuring safety during maintenance or storage. This is an essential component for any van conversion with a large battery bank. This comprehensive electrical system ensures a reliable and efficient power supply for extended off-grid adventures in your VW Sprinter.
