How to wire a 3 prong rocker switch (2023)


How to wire a 3 prong rocker switch with light and fitted to an led on my portable fish finder



Hi, all and good afternoon, today's little video, which I'm going to do a quick which one this is a switch to waterproof, switch like so with the rubber mount right.

This rubber will go over the top afterwards and seal it properly after I've drilled the hole in the box.

The idea is it's going to go in my fish finder box, but I also want it so that that's does that come off anyway, scratched in it anyway, so I want them to control these, and these are like these are um actually number plate lights, but they're not going to be they're going to be for night fishing, so I want them to fit it.

I want to fit it to the box.

Let me just show you what I'm doing if we understand that better okay, so this is the this.

Is the box you've seen this in the previous video hold on one sec I'll? Take you back a bit come out tilt your back up? Sorry, okay! So this is my all-in-one fish finder box, and what I want to do is put either a light.

I'm not too sure I'm going to put them yet either there or here.

I think that the sides will be okay drill them through.

These are waterproof as well fit them, but I want to go into a switch, a wired switch which has got a light on it to tell me when it's on and when it's off and uh.

That's what I'll be doing today I'll be wiring this up, whether it's wrong or right, I'll, get it right, and if you like the video, please give it a thumbs up and if you've got any suggestions or better ideas.

Please leave a line in the description below so without further ado.

Let's get wiring, okay, so top one color gold, that's the switched light so that'll be! Oh, we put in a negative to that all right and then the center one is the control which is the switch and then the bottom one is the live.

So I need to connect a live from the battery to that and then what I need to do then, with this one, is connect the negative to the negative at the top.

With this one and then the live from this light to the center one, which is the switch- and what should happen is when we switch this on and it's all done, the light should come on, and so should this light come on and then we switch it off.

This should tell me that the light is off and the power has stopped going to the light.

So yeah, that's in theory.

What should happen um.

I think I'm right.

If I'm not, I apologize.


What I'll be using is spade ends.

These are a little bit they're.

Actually too big, but that's all I've got at the moment.

So just just for this video sake, I'm going to be using these.

They do fit they're a little bit small, but they do fit quite snugly, so I'll be using blue and red to symbolize the live and the neutral okay.

Okay, because I don't have any red ones of these, we're gonna have to use blue.

So I'm gonna put you see that yeah, so I'm putting the blue connector onto this.

This will go to the battery, so just push him in using the crimps on blue.

There we go squeeze him on tight there we go so that of course, will be red and I'll do blue the same.

Oh yeah, black, the same on a blue one, okay, quick change of plan.

That's in focus! Is it no anyway, so I'm going to I've managed to get all to my lad and we got some two core flex.

So we're going to use this instead of these two from the battery, so they look a lot tidier and there's loose wires everywhere.

So I'll re-crimp these you don't need to see that so brown is live, which is red which will be, and then blue is negative.

Okay, so they'll go to the battery.

So now, on the other end of this live one which goes to the battery we're going to put a spade, at least like I said this page is a little bit bigger than what I want for this particular switch.

You can see but they're not as big, but they fit okay, all right so I'll crimp that on there now, if you wanted before you put this on here, if you wanted to you could put this- is just demo perp demo a demo really well, you could put an inline fuse.

Okay, a small 510 amp fuse, not even that small five amp fuse between this and the battery all right.


So this now is alive, which goes to the bottom and not the gold to the bottom, because there's no instructions with this there we go.

So he goes on there like that, all right! So that's live to the bottom of the switch.

I don't know what you call it, but the gold one is the light.

Okay, I'm gonna get another piece of this.

What 30 centimeters? If that yeah about that long, cut this, and then I'm going to join this I'll, show you so this to the actual light and switch okay.

So, like I said the bottom one, the gold is the light.

So now I've crimped two blues, so two negatives into one spade end all right and that'll.

Go to where am I putting that now we have the deckers on that to the light like so okay, and then this one will then go to the middle one, which will then control the light this end.

Hopefully, so I'm just gonna peel back, I'm just showing you what I'm doing is I'm peeling back the cable clean that off and the lights, the lights that came, which I've got they've got two of them.

Actually, some have to have to do some more when I I forgot about that.

I'll have to do two more, so I might need right, okay, I'll work that out so live spade on this, like okay and that'll go in the center they're a good fit, which is good all right here we go so you see that so we've got a live coming into the switch live coming out.

The switch will go to the light and then the two neutrals at the top, which controls this light- you'll see it in a sec.


So here comes a little bit of a bodge, because I can't wire these in the box just yet because I need to push the wires through or do I just the strips that need to go in, don't they yeah they because they're going on the outside I've got to push the wires through.

So I have to drill holes first, but for a demo purposes, let's see if we can get this to go.

Okay, so just join the two reds together right now: two blacks, together negatives.

So now now we're gonna.

Do we need to join them to these without them touching so give us a sec? Okay, let's give it a go.

So you've got positive and negative to the switch um.

Two negatives going to the light part of the switch at the top you've got a live current sentence.

Well, no you've got a live going into the switch at the bottom.

Sorry live coming, it's making the switch live.

So when you hit the switch this center, one should become live, which then goes to these two lights and the negative goes to these two lights.

So then, you've got power.

Coming in stopping controlled by this and then the light at the top, so when I connect the battery the light on the switch should work, and these should light up as well be careful that these don't touch because you will probably set fire today, the uh wires right, so we're going to put them on there.

I don't know if it'll work like that, just touching them gently push that down, and I have to hold that on okay.

So here we go all right.

Here's the switch two lights boom there you go! The switch is now live with the lights showing, so that shows that these lights are on and the two lights are working beautifully and there you go how to wire one of these switches that doesn't come with any instructions whatsoever.

So, at the end of the day there you go I'll, do this and fit it not sure it'll fit it.

So there you go positive, coming in negative to the switch part of the light and the light itself, which I suppose the live is putting power to the light on the switch and then the switch then converts the pattern, changes the power and turns it down to the lights, which is then going to negative there.

We go another bit of a fun vid for anybody's interested there.

You go put a hole in that's where one like, I think, I'm gonna have one like.

I only need it for like if you get dark and whatnot when you're putting your hooks on a little bit of sealant in the hole and probably a little bit around the edge, the holes up start cutting the hole I used a whole bore.

You want to get the right size.

I haven't, got the right one though I'll file, the rest out.

Okay, that looks like it's going to fit.

You can see a little tiny groove there I'll make a groove in the box that should lock it into position so it shouldn't slide out or come out and then you've got to make sure that the rubber is over the edge this rubber must fit over there because it gets jammed then see that there okay that was makes it that's what makes it that makes it watertight all right oh look at that just in case I've got two switches just guess you've got a bit confused so this is the wired one now okay wired because I wasn't too sure where the wires were going to go there's no need to be that long so snip them I'll snip these and then we'll use special connectors waterproof ones to put these together okay let's give it a test get out switch wired in a little sticky m3 stickers I think they are um cable cable tidies uh and then I put it as you can see that cable tower on the handle of the battery all fits in battery can be charged externally but because I've got a anderson connector on it I just plug into that and that charges it everything back in got the cables in tidy there's a reason why it's not closing can't figure out what it is so there it is.

I see it's catching the handle bear with me.

The handle is getting trapped all right there we go blocking all full water tight.

Are you ready not tried this? Yet I'm not joking.

I've not tried it yet.

I've wired it all up boom.

Look at that so switched button to a light.

So if it gets dark there we go all totally portable light switch battery.

All in one, I thought: what's the point of having it, if you've got a battery and you're not using it to its full potential, so I've got a lightning love it thanks very much for watching.

If you enjoyed the vid, please give it a thumbs up and we're right.

This time any videos coming up will be over here subscription button over there with the notification bell.

That would be fantastic honestly.

It makes a big difference.

Uh, that's it how to wire one of these switches with no instructions so that the light comes on and you like and you you got power to your main lights as well.

Okay, take care! Thank you very much.



Which wire stays hot on a 3-way switch? ›

Black wire: This is a hot wire that carries electricity from the power source to the first switch in a typical 3-way setup. It's also called the “common wire” or the “line wire.” Unless the breaker is off, this black wire is always hot.

How do you wire a 3-way single pole? ›

To convert a 3-way switch to single pole, one of the traveler wires is removed from the switch. In order for a 3-way switch to function as a single pole, the wires need to be connected to the common and one of the traveler terminals. It will not work if the wires are connected to the two traveler terminals.

What is the wire position of 3 pin plug? ›

Wires in a 3-pin plug

The colour code for the wiring is as follows: Red Colour: Live Wire Black Colour: Neutral Wire Green Colour: Earth Wire In a standard 3 pin plug that is triangular in shape, the earth wire is on the top and usually larger than the other two pins at the bottom.

Does red wire go to white or black? ›

Basic Wire Color-Coding

A black or red-hot wire usually connects to a brass-colored screw terminal or black wire lead on electrical devices. A white neutral wire usually connects to a silver-colored terminal or white wire lead.

Will a 3 way switch work if wired wrong? ›

The 3-way function won't work properly for sure. Usually one switch will not work at all if the first switch is in the wrong position. Throw the first switch and second switch now might work.

Which wire is considered hot in a 3 wire circuit? ›

The black wire is the "hot" wire, it carries the electricity from the breaker panel into the switch or light source. The white wire is the "neutral" wire, it takes any unused electricity and current and sends it back to the breaker panel.

How do you tell which wire is hot when both are black? ›

The easiest way to tell which black wire is hot is by using a circuit tester. If you don't have a circuit tester, you can also use a multimeter to test for continuity. Simply touch one lead of the multimeter to each of the black wires in turn and see which one gives you a reading on the multimeter.

Is common wire hot or neutral? ›

In a typical household, there are three types of house wiring: common wires, ground wires and hot wires. A common wire, also called a C-wire or a neutral wire, is a part of your heating system.

Where does the common wire go on a switch? ›

First, connect the common wires to the common terminals labeled on both new switches. If the terminal isn't labeled as “Common,” it will have a black or copper terminal on the bottom side of the switch. Then, connect the red wire to a terminal on the top side of the switch.

What is a 3-way pole switch? ›

Three pole or three-way switches are used to control one or more lights or fixtures from multiple locations, such as the top and bottom of a flight of stairs. Single pole and 3-way switches look the same when installed but are used for different purposes.

What is a traveler wire? ›

A traveler wire, also known simply as a traveler, is one of two or four electrical wires used to power a multi-way lighting circuit (depending on if you have a three-way or four-way switch). They're essential components of a convenient, modern household.

What does the neutral wire do in a three pin plug? ›

Neutral wire carries the circuit back to the original power source. More specifically, neutral wire brings the circuit to a ground or busbar usually connected at the electrical panel. This gives currents circulation through your electrical system, which allows electricity to be fully utilized.

Why do rocker switches have 3 pins? ›

As shown below, rocker switches have 3 electrical connections. Pin 1 is where the rocker switch receives the input power. Pin 2 is where the accessory that the switch is going to turn on is connected. Pin 3 is where the switch is either connected to ground or left open.

What does a 3-way rocker switch do? ›

In some applications however, such as hallways and larger rooms, having a single switch can be inconvenient, so it might be useful to control the light from two locations, and this is the role of the 3-way switch. These are used in pairs, with one at each switching location.

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