£8.29
£9.95 inc VAT
| Self-Switching Combination Relay
H78
The self-switching combination relay is straightforward to fit and supplies power to the caravan's +12v, battery charging and refrigerator supplies only when the vehicles engine is running and the alternator is providing enough output. It automatically prioritises charging of the vehicle battery over all other functions, and requires no connection into the vehicle's alternator or ECU wiring
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