The track spotlights are believed to be familiar to every illuminator who works with the luminaires, because it is too wide-ranging, and the store’s shops, museums, and even many homes now use track spotlights.

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However, although everyone knows the track spotlights, it does not necessarily know that the track has two wires, three wires, four wires, or even six wires. Today, we will discuss the differences and applications of the most commonly used three-wire track and four-wire track.

Three-wires track

And then we can see the lamp as following figure.

The rotatable card of the rail spotlight is like a plastic buckle, which only plays the role of fixing the luminaire on the guide track.

The card below has three pieces of copper, which are respectively connected to the three wires of our track, so the electricity goes in.

Some people may ask: Isn’t there a line of fire wires? Why do you need three lines?

As shown in the figure, the two yellow wires are the hot wire zero wire, and the red part is the ground line. We often call it the PE wire.

Therefore, when installing the track spotlight, it is not necessary to be able to reverse the loading. There must be a direction, because after it is turned, the two wires should face the two wires.

So, the two copper skins received the two wires on the left, and a copper sheet was connected to the wire on the right.

Then the three wires can be connected separately at the other end of the terminal.

The PE wire is generally the single one as the above.

And the bottom two are the fire zero wire.

The above is a three-wire track. Since the three-wire track has only one fire and one fire, when you energize the fire to zero, all the fixtures on the entire track are fired and zero, so they will all be bright.

Four-wire track

First of all, we can see from the side that the four-wire track is much higher than the three-wire track. Because it has two floors.

Why are these four wires used?

One zero wire and three firewires

Then why do you have so many firewires?

When a large number of lamps are installed on one of the tracks of the four-wire track, you can control the power supply to the first circuit, and the light connected to the first circuit lights up. The second loop is energized and the second loop light is illuminated. The third loop is energized and the third loop light is on.

A lamp mounted on a rail can be divided into three ways to control. This is the role of the four-wire track.

Let’s look at the wiring heads inside, a total of five. Why are there five?

The middle red connector is actually connected to the outer casing of this track. So it borrows the shell to make the ground.

The current wire is connected to N and L3, that is, if the wire is powered on, then the light on the third circuit will be lit.

After we put the lamp into the four-track strip, we can see that there are 3 loops marked 1, 2, and 3 next to the track light.

Now the default is on the 1 loop. When we plug in the power, the track light is not lit. When we dial the third loop, we will find that the light is on. If another light is placed on top of 1, then power on the number one, then the light will be on.

This is the role of the four-wire track, which can be divided into several loops to control the lights on the same rail.

So when in the same position, you want to install a few different rail spotlights, hope to open on different scenes, if you use three-wire tracks, then you have to install several tracks. Which rail is powered on which track light will illuminate.

And if you use a four-wire track, there is no such problem. So this is the difference and application of the three-wire and four-wire tracks.