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Discussion Starter · #1 ·
Good afternoon!

Here is my proposed electrical system for our camper conversion. We are only going with alternator charging and shore power for now.

The components used from left to right include:
  • 30 amp smart plug shore power
  • Victron Energy Blue Smart IP22 12-Volt 30 amp 120V, 3 Output Battery Charger NEMA 5-15
  • GoWISE Power 1500W Continuous 3000W Surge Peak Power Pure Sine Wave Inverter
  • Victron BMV-712 Battery Monitor with Battery Temperature Sensor (green box in diagram)
  • Victron Energy Orion-Tr Smart 12/12-Volt 30 amp 360-Watt DC-DC Charger, Isolated
  • Blue Sea Systems ST Blade ATO/ATC Fuse Blocks w/ cover (not shown in diagram)
I'm going to have all of the wiring be as short as possible (I just included lengths on there for my own reference when buying) with the circuit breakers as proximal on the (+) lines as possible. I think all of the wire gauges should be okay based off of all of the manuals that I just finished reading.

My main concerns were the following:
  1. Can I just connect the back of the smart plug into the back of the Victron Blue Smart Charger? (on the far left of the diagram, just cut off the standard electrical outlet off, throw a 40 amp circuit breaker on the +, and then hook it up?)
  2. Did I go too crazy with the circuit breakers on the diagram? I don't think I did but I'm also not sure.
  3. Should I put another power cut-out switch anywhere? I bought a second one a few months ago but I don't really remember why.
  4. Am I missing anything here or have I made any major mistakes?
I'm not worried about wiring the DC stuff but while I've done a ton of research, I don't truly know what I'm doing so I'll take any and all advice that you guys have for me.


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· Registered
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For boats (and rv’s I assume) - shore power ac main is limited to the plug rating. I.e. for 30A service, your ac main breaker from the shore power plug should be 30a. Don’t just plug the sharper into the shore power plug.

also - your circuit breakers are pretty large for the tr smart. If you know your current will never exceed 30A, size your breaker at 40A, even if the wires can safely handle more current and a larger breaker.

your inverter and battery bank really should be protected by a class t fuse, not a circuit breaker. Circuit breaker might not trip fast enough to protect them.
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