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Hanse 350 wiring diagram and switch ID

WindwardMark

Member
Joined
May 13, 2025
Messages
9
Just got a 2008 Hanse 350 and I was a bit taken aback to find there aren't any factory wiring or plumbing diagrams. Does anyone have a copy or maybe a sketch they could share? Also, I noticed a red switch under the chart table near the 220v socket that has a symbol that looks like a thermometer in water. Is that the heater switch, is it linked to the 220v system? Appreciate any help
 
For the diagrams, you can always contact a Hanse dealer with your Hull ID, they might yield some general drawings though full detailed diagrams can be rare.
 
Congrats !! Its pretty common for these boats not to come with full factory wiring or plumbing diagrams, but I know some have made their own. That red switch with the thermometer-in-water symbol sounds like the water heater switch, and yes, its likely tied to the 220v shore power system. Make sure you're connected to shore power before turning it on.
 
Good to know! Sounds like that red switch controls the water heater. Definitely important to have shore power connected before flipping it.
 

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