Wiring Carling Rocker Switch

[midexp]

I'm installing Fox Gateways on my engines and I need to power them on. I bought a 3 terminal Carling Rocker switch. My wiring hook up is as shown. Does anyone know which terminals the wires go to? And is the 3 terminal the right one?

 

[KevinC]

Typically with the Carlings the power goes to the center pins and the top or bottom pins would feed the circuit when switched. Above or below that would be the light indicators.

For a SPDT with light it would be something like this:

| <-- Power for light (if available)
| <-- circuit 1 (top)
| <-- +12VDC (center)
| <-- circuit 2 (bottom)

I believe a SPST with light would just be the top three

-Kevin

 

[Captsteve427]

Typically with the Carlings the power goes to the center pins and the top or bottom pins would feed the circuit when switched. Above or below that would be the light indicators.

For a SPDT with light it would be something like this:

| <-- Power for light (if available)
| <-- circuit 1 (top)
| <-- +12VDC (center)
| <-- circuit 2 (bottom)

I believe a SPST with light would just be the top three

-Kevin

If it's the 3-pin Contura 2 switch, the pin on its own is the ground, the pin closest to it is power In and the last pin is power Out.

 

[KevinC]

If it's the 3-pin Contura 2 switch, the pin on its own is the ground, the pin closest to it is power In and the last pin is power Out.

Yes a single pole single throw (SPST) that looks like this:

The top pin (7 shown) would be a ground for the lamp. Center would be + and bottom would be switched output to circuit.

-Kevin

 

[midexp]

Cool guys, just what I was looking for. So to be clear, I will run I ground wire from the top terminal to a ground bus bar. The middle left terminal is the power coming in and the lower left will be a wire going to a positive bus bar?

 

[boatrboy]

I'm installing Fox Gateways on my engines and I need to power them on. I bought a 3 terminal Carling Rocker switch. My wiring hook up is as shown. Does anyone know which terminals the wires go to? And is the 3 terminal the right one?View attachment 122988

I installed the Fox to my last boat but used the ignition switch to power on so I did not have to hit another switch every time I started the engine.

 

[Henry Boyd]

I installed the Fox to my last boat but used the ignition switch to power on so I did not have to hit another switch every time I started the engine.

When the network only handles engine related data tying the net power to the engine “ignition” (gas or diesel) limits the usefulness of the network to only when the ignition is on. If you decide you want to add a Fusion stereo you’ll lose functionality without a network, as well as losing nav gear that relies on it to communicate.

Our network is powered up when the master switch for the electronics is energized.

 

[ttmott]

Henry is right you really don't want to depend upon the ignition to power your network backbone. You could put NMEA 2000 power isolators in the drop legs for your engine monitors then power those drops separately from the ignition. This way your NMEA 2000 backbone can remain powered up independently and host other functions.
https://www.amazon.com/Ancor-270113...26Z5?msclkid=18bad0f1ab5711ec88cdffdbed7e039a

 

[boatrboy]

When the network only handles engine related data tying the net power to the engine “ignition” (gas or diesel) limits the usefulness of the network to only when the ignition is on. If you decide you want to add a Fusion stereo you’ll lose functionality without a network, as well as losing nav gear that relies on it to communicate.

Our network is powered up when the master switch for the electronics is energized.

I see your point. When I outfitted my 1999 Sundancer with a Simrad fuel monitor and the Fox Gateway, it was mostly diagnostics and mph. I did not have a lot on the network that needed power all the time so I never really thought about that (stereo, etc.). It worked great for what I was doing at the time.

 

[midexp]

Does anyone know how I need to connect the bare silver wire (called the drain wire)?

 

[midexp]

Forgot to attach pic.

 

[Henry Boyd]

I see your point. When I outfitted my 1999 Sundancer with a Simrad fuel monitor and the Fox Gateway, it was mostly diagnostics and mph. I did not have a lot on the network that needed power all the time so I never really thought about that (stereo, etc.). It worked great for what I was doing at the time.

Right, initially when nav systems were on their own proprietary networks like Seatalk, and engines were limited to CANBuss applications like Smartcraft and everything was incompatible everyone the general thinking was unique specific systems related. With the growth of NMEA2000 and the integration of engine telemetry and navigation, and other vessel systems like trim tabs, fuel management and entertainment that it provides the thinking has to move towards more of a whole boat concept.

 

[swaterhouse]

Does anyone know how I need to connect the bare silver wire (called the drain wire)?

If your boat has a dedicated ground plate, which is doubtful, connect it to that, otherwise ground.

A grounding plate is usually a metal plate on the outside of hull, not the zinc.