Retrofitting a DC-DC Charger to a Sargent EC500 (Motorhome)
Edited
Your motorhome must use the EM40 module if this guide is used.
The diagram below details how you can fit an isolation relay and feed the DC-DC charger output into the existing sargent system.
Note, the D+ for the DC-DC charger may be labelled as "Remote" on Victron products, and the H-pin of this remote connector should be used. The small wire loop pre-fitted, must be removed.
Non-isolated DC-DC chargers should be used, if an isolated version is used, both negative connections must be combined.
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