solar system fuse(s)?

[genehelfman]

Can;t find it (them) and want to know where to look. The wiring diagram indicates a 30 amp fuse. Are there more than one, e.g. a separate fuse associated with the MPPT controller? I have checked all 4 blade fuses on the small wires near the starter and house battery terminals. Thanks

 

[Submariner]

Can;t find it (them) and want to know where to look. The wiring diagram indicates a 30 amp fuse. Are there more than one, e.g. a separate fuse associated with the MPPT controller? I have checked all 4 blade fuses on the small wires near the starter and house battery terminals. Thanks

Need to know what boat you have, what year, and whether you have Lithium batteries or AGM batteries. The answer will vary based on the boat you have.

 

[genehelfman]

oops! Brain f*rt. Forgot to say 2023 R27.

 

[genehelfman]

oops! Brain f*rt. Forgot to say 2023 R27.

AGM

 

[Submariner]

AGM

2023 would have either a MPPT or PWM style solar controller. If you have the MPPT solar controller, it'l be in the cave and be easily visible. If it's not there, it's a PWM style solar controller in the cockpit starboard lazarette, aft.

In both instances, you'll find a 30 amp ATC/Blade style fuse, in a fuse holder, on the engine battery and on the house battery. There is no fuse between the controller and the solar panels.

What you're looking for is this, the wire will have a label that says "solar" on it.

 

[genehelfman]

Thanks, again. I had found that and checked it and it was okay. I was expecting something closer to the controller.

 

[Submariner]

Thanks, again. I had found that and checked it and it was okay. I was expecting something closer to the controller.

ABYC standards, fuses need to go as close to the battery as possible as that’s the true source of power.