Quick answer: No. A 4-way switch enables you to control the same light from three or more locations when used between two 3-way switches. In contrast,a double-pole switch operates two electrical paths together from a single control. Although both these switches can have four main terminals, their jobs and internal connections are different from each other.
A 4-way switch doesn’t directly turn a circuit on and off. Instead, it changes how two pairs of traveler wires connect to each other. That change determines whether the complete path through the multi-location lighting circuit is open or closed.
A double-pole switch works differently. It opens or closes two current-carrying paths at the same time. Depending on the electrical system, those might be two hot conductors on a North American 240V circuit or live and neutral in other applications.
| Feature | 4-Way Switch | Double-Pole Switch |
| Main purpose | Multi-location light control | Switch two electrical paths together |
| Typical terminals | Four traveler terminals | Four switched terminals |
| Operation | Changes traveler connections | Opens or closes both paths |
| Used alone | No | Yes |
| Typical circuit | Between two 3-way switches | Depends on load and electrical system |
Although a 4-way switch might seem similar to a DPDT switch on a diagram, they are not interchangeable by any means. A conventional DPDT switch as six traveler terminals, whereas a typical 4-way switch has just four.
In North American terminology, four way electrical switch wiring uses two 3-way switches with one or more 4-way switches between them.
For three control locations, the arrangement looks like this:
Line → 3-way switch → 4-way switch → 3-way switch → light
The first and last 3-way switches have common terminals. The 4-way switch in the middle doesn’t. Instead, four traveler conductors connect to two matched pairs of terminals.
Flip the 4-way switch and its internal connections change. In one position, the two traveler pairs connect straight through. In the other, the connections cross. Either change can complete or interrupt the overall path through the circuit, depending on the positions of the two 3-way switches.
To control the light from four locations, another 4-way switch goes between the two 3-way switches.
Outside North America, the names typiaclly differ. In the US, for instance, what people calla 3-way switch is a 2-way switch in Australia and the UK. A 4-way switch in the US is commonly referred to as an intermediate switch.
IGOTO explains more of the related terminology in our guide to gang and way switches.
Since every manufacturer does not lay out the four terminals using the exact same procedure, you have to look at the terminal markings on the switch.
The four traveler terminals are organized as two matched pairs. Then the two travelers coming from one side of the circuit connect to one pair. Connecting to the second pair are the other two travelers that contine toward the other 3-way switch.
Manufacturers may use different terminal positions, screw colors, or markings to identify these pairs. It can be misleading to label them as fixed output and input terminals because the electrical path varies as you operate the switches.
You should also follow the product instructions and applicable electrical rules for grounding. Switch of the power and verify that the circuit is de-energized before doing any type of work on the wire. Plus, check the wiring diagram supplied with the switch to confirm whether you can arrange the four traveler terminals differently from one model to another.
There is no common terminal for the outgoing load or the incoming line in a 4-way switch. Instead, those connections are formed at the 3-way switches present at the either end of the circuit.
The four terminals on a 4-way switch basically connect to traveler wires. These can bee energized as the circuit routes power between the two 3-way switches depending on the switches’ positions.
As such, just the wire color or the position cannotm help you identify a hot traveler on a 4-way switch. For those working with an exisitng circuit, it’s important to turn off the power and make sure the circuit is de-energized before touching any conductor..
No universal color code exists for 4-way traveler wiring.
But if you consider installations in North America, black and red are most commonly used for travelers as they’re present in a standard multi-conductor cable. However, those colors alone don’t reveal how the wire functions.
Where permitted, white and gray may be used as an ungrounded conductor. However, this needs to be properly reidentified so that someone working on the circuit doesn’t mistake it as a neutral. Grounding conductors are typically bare green or copper under North American convections.
So when you’re working with an existing two-way circuit, don’t use colors as the baseline for determning the function of the conductor. Check how the wires are connected and follow the wiring diagram for the switch you’re installing. Building age and local requirements mean the wiring methods can differ between switch installations.
A typical four way switching diagram looks something like this:
Line → 3-way switch → traveler pair → 4-way switch → traveler pair → 3-way switch → light
It basically highlights the switching path. The neutral runs between the light and the supply separately. The fault-current path is provided by the equipment grounding conductor on the switch.
Traveler connections inside a 4-way switch alternate between two positions:
Position 1: A → A and B → B
Position 2: A → B and B → A
The first position is where the travelers go straight through. The connections cross as soon as you flip the switch, rerouting the electrical path between the two 3-way switches. Because the exact terminal arrangement can vary by switch, it’s best to use the wiring diagram offered with the item to determine the two matched traveler pairs.
Before you go ahead and place an order, confirm the function of the switch first. Product terminology can vary by market, with a 4-way switch in the US sometimes being sold as an intermediate switch in other markets. As such, always check the required function rather than going by the product name for b2b switch orders.
You’ll also want to check the electrical specifications of the switch. After all, the regional standards, terminal configuration, current and voltage ratings all need to match the market where it wil be used. If you’re sourcing different ranges for various markets, confirm which approvals apply to each one.
For bulk b2b orders, it helps to learn how the manufacturer handles quality control across production. At IGOTO, we use automated production equipment alongside online quality inspection. We also carry out laboratory and sample testing as additional quality checks to make sure customers get the highest quality switches. You can learn more about our manufacturing and then get in touch if you need light switches for your project.
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