CMC PT130 relay ground wiring help please

[bmuth]

Have a CMC pt130 tilt and trim I'm installing from another boat.

The 2 relays have 2 ground wires each so total of 4 ground wires. 3 of the ground wires have come disconnected from the relays. The 3 wires are all different gauge so I'm trying to figure out which ground plugs into which slot or if it matters since they're grounds. The wires are different gauge but the connectors are same size.

Tried calling the company that makes CMC but closed for the holidays.

Thanks for any help.

 

[Huron Angler]

Re: CMC PT130 relay ground wiring help please

Have a CMC pt130 tilt and trim I'm installing from another boat.

The 2 relays have 2 ground wires each so total of 4 ground wires. 3 of the ground wires have come disconnected from the relays. The 3 wires are all different gauge so I'm trying to figure out which ground plugs into which slot or if it matters since they're grounds. The wires are different gauge but the connectors are same size.

Tried calling the company that makes CMC but closed for the holidays.

Thanks for any help.

I've been down this road and my advice is to order two brand-new relays and install them. I found them for dirt cheap online so it's not worth the hassle. They are around $5-10 each and come with the relays, and wiring kit all wired up.

Here's one that I found, probably can find them cheaper online elsewhere.

Sorry I'm not more help, but that's what I'd do to keep things simple.

BTW make sure you keep them dry once they are installed, son't ask me how I know about that.

 

[NYBo]

Re: CMC PT130 relay ground wiring help please

Odd that they would have 2 battery negative leads. Switches are usually on the positive side of the circuit; there would only be 1 negative lead per relay in such a scenario.

But since there are 2, the ones with the heavier gauge wire would be for the switch side of the relays i.e. for the motor circuits.