The scenario
A DIY campervan builder needs to document the 12V electrical system architecture.
What is in this drawing
Read the decisions behind it.
01
Choosing fuse ratings for alternator and solar inputs
02
Placement of battery isolator switch to disconnect loads while allowing charging
03
Selecting appropriate cable sizes (not explicitly shown, implied)
Useful for off-grid van conversions, boat electrical systems, and small-scale solar setups.
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