Identify this device please

[ohthetrees]

Please help me identify this device. It is near my batteries, and has very thick cables connected to it.

[Dogscout]

Circuit Breaker.
Something like this

[ohthetrees]

Thank you for that. What threw me is the smaller wire coming out of it with a 30a fuse on it. Still not sure what that is about. If anyone knows, would love to know more about it.

[Sailmonkey]

That’s an automatic combine relay.

The wire with the 30 amp fuse is the ground.

The unused terminal on the top is for a status light, the unused terminal on the bottom (I believe) is for a manual battery parallel switch.

[Lake-Effect]

Specifically, it looks like this unit:
Samlex Solar ACR-160 Automatic Charge Isolator

[ohthetrees]

Oh, perfect guys, thanks so much, very helpful to have the exact model and be able to look at the manual.

[Dogscout]

Learn something new every day. Sorry for my mis diagnosis

[ohthetrees]

Originally Posted by Dogscout

Learn something new every day. Sorry for my mis diagnosis

No problem, I obviously didn't know either! Thanks.