Spark your knowledge of these two electrical components
A double pole switch controls two circuits instead of one, making it ideal for 240-volt appliances like air conditioners, electric furnaces, and water heaters in your home.
Single-pole switches cost $1 to $10 each, while double-pole switches cost $10 to $30, with professional installation ranging from $60 to $300 for your project.
Double pole switches have four terminals instead of two, allowing them to disconnect both hot wires when turned off for added safety with high-power appliances.
Hiring a local electrical professional keeps your installation safe and compliant, handling the wiring complexities and ensuring proper switch function for both switch types.
Whether planning a new switch installation or growing your knowledge of electrical components, you may have encountered the terms single-pole vs. double-pole switch. But what do they mean? A “pole” is the number of individual circuits a switch can operate: A single-pole switch can control one circuit, while a double-pole switch can control two circuits. Still, that’s only scratching the surface of what distinguishes the two types of switches. Let’s dive into the differences between a single-pole and a double-pole switch.
When taking on this project, expect questions only a pro can answer. With our network of local pros, you'll get the job done and your questions answered—without the hassle and stress of doing it yourself.
| Type of Difference | Single-Pole Switch | Double-Pole Switch |
|---|---|---|
| Number of Circuits Controlled | One circuit | Two circuits |
| Uses | Common light switch | Isolates appliances |
| Power Capacity | 15–20 amps | 30–40 amps |
| Number of Terminals | Two | Four |
| Cost | Costs less | More expensive |
A single-pole switch is the most common type of electrical switch in residential homes. These are typically used for lights and small appliances that don’t require a 240-volt outlet. Double-pole switches are often used in commercial settings and large machines. You’ll also find them in homes as a safety shut-off feature for large 240-volt appliances, such as an air conditioner, electric furnace, or water heaters. Don’t confuse these switches with a three-way switch, which allows you to control a single fixture from two locations.
Double-pole switches can handle more power, around 30 or 40 amps, compared to regular switches that handle 15 or 20 amps. Double-pole switches also have a green screw that you use to connect the grounding wire in the electrical system for safety. Contact a local electrician to install both types of switches for best results.
A single-pole switch typically has two terminals, while a double-pole switch has four. The two terminals on a single-pole switch are used for the hot and the switched hot wires. In contrast, a double-pole switch has four terminals to control two separate circuits or hot wires. These extra terminals allow it to fully disconnect both hot wires in the circuit when turned off, making it the most suitable for high-power appliances requiring a double disconnection for added safety.
The cost of installing a light switch between a single-pole vs. double-pole switch can vary based on factors such as the brand and quality of the product. Generally, single-pole switches are more common and more affordable than double-pole switches. Single-pole switches typically cost $1 to $10 each, and double-pole switch prices range from $10 to $30 each.
The cost to professionally install a light switch generally ranges from $60-$300
influenced by factors such as the type of switch, labor costs, and potential rewiring needs.
Basic "plug and play" switches are the least expensive. However, dimmer switches, timers, smart switches, and three- or four-way switches typically incur higher costs.
Electricians in urban areas often charge more per hour than rural ones. Additionally, difficult-to-access sites may result in higher fees. Remember, the typical labor cost ranges from $50 to $100 per hour on top of paying for the switch.
Installing a new fixture and switch, especially if rewiring is needed, can take several hours and exceed $400. Grounding a two-pronged outlet, for example, can be exceptionally costly.
Installing single-pole and double-pole switches yourself can save money and be rewarding. With basic electrical knowledge, single-pole switches are straightforward to install, as they handle lower voltages.
Double-pole switches, rated for higher currents, are commonly used in industrial spaces. While the wiring is similar to single-pole switches, you'll work with thicker wires and higher currents, which involves more risk.
In both cases, hiring a professional ensures safe, compliant installation. Electricians have the expertise to handle complexities and troubleshoot issues, ensuring proper switch function. Though more costly, professional installation is worth it for your safety and your home's security.
Great company! Price was competitive, technician showed up on time and completed the job (exterior electric Radon fan replacement) quickly. Would hire them again.
MaGen Property Inspections and Radon MitigationI conferred with 2 other contractors before Armstrong Electric. Nick and his crew showed me that the project was not as convoluted as the other contractors made it appear to be. They completed the entire project on time. They were professional, friendly and cleaned up after at completion. I...
Armstrong Electric LLCThe techs on my project, Shawn and Cliff, were great. They were prompt, courteous, and efficient. I am very happy with the results and would definitely contact Mr. Electric for any future electrical projects.
Mr. Electric of ColumbusVictor was wonderful. He was on time, professional, and explained everything he was doing. He was thorough and figured out that the problem was electrical instead of with my HVAC system. Very knowledgeable. I will be using this company in the future for any HVAC needs. Thanks!
Hubbs Heating & Air LLCThey were excellent. They did a great job. I was totally satisfied. They put tremendous effort in making sure the work was completed. They were great. They provided immediate response to any inquires I made. I would hire them again. I would recommend them to anyone who needs electrical work....
Property-Tech Industries, LLCInitially, the repairman could not find the problem. Apparently, there was some electrical shortage, but he could not find the definite problem. He left, but called back later to say he had a new idea. He returned and replaced the light switches on the doors. The refrigerator seemed to return...
Appliance Pro LLCThe initial quoted price from a walk-through seemed high, but we discussed that the quote represented worst case scenario (re-wiring to two floors) and we were excited about the opportunity to have the work done in a timely manner with closing for fire safety reasons, etc. When the job was...
I have to tell you I am all about customer service - I will go out of my way and even pay more for it if you give me great customer service. <br> <br>In a world where this is hard to find, these guys were awesome! I can not sing their praises enough. They were prompt, personable, funny, got...
Waibel ElectricWhen I challenged the markup on the generator, Bruder Electric withdrew its bid. They only want naïve customers.
We had no power to any of the electrical outlets in the MBR. We'd had an intermittent problem for a few years and they finally went out all together. We live on the 3rd floor of a 100 year old building and I know from past experience the wiring has been added to in hodgepodge ways over the...
From average costs to expert advice, get all the answers you need to get your job done.
If you want the convenience and peace of mind they bring, learn how to install smart light switches to control your home’s illumination from any location.
Is adding a double-cylinder deadbolt to an exterior door a good idea? Find out about the pros and cons of adding double-keyed deadbolts vs. single-keyed deadbolts to exterior doors for safety and security. Deadbolts with two keys pose unique challenges.
Light switches don’t have to be confusing for non-electricians. If you’re wondering how does a light switch work, here’s what to know.
Understanding what wire colors mean will help you complete electrical projects safely. Follow this guide to distinguishing blue and brown wires.
Who wins in the battle of single-pane vs. double-pane vs. triple-pane windows? Each has its pros and cons, and you can find your best fit here.
Not sure what the difference is between single-stage vs. two-stage HVAC systems? Find out which one is best for your home and needs.
