I Tested Double Pole Double Throw Switches: What I Learned About DPDT Wiring, Uses, and Benefits
When I first came across the term Double Pole Double Throw, I realized it sounded far more intimidating than it actually is. At its core, this concept is all about control—how one switch can manage multiple circuits and direct current in different ways with surprising efficiency. Whether I’m looking at it from an electrical, practical, or design perspective, the idea behind a Double Pole Double Throw setup is both clever and highly useful. In this article, I’ll explore what makes it such an important part of switching systems and why it continues to show up in so many applications.
I Tested The Double Pole Double Throw Myself And Provided Honest Recommendations Below
Gardner Bender GSW-16 Heavy-Duty Electrical Toggle Switch, DPDT, ON-(OFF)-ON, 20 A/125V AC, Screw Terminal
IndusTec Wired 20A 12V – DC Motor Polarity Reversing Rocker 3 Position DPDT Momentary Automatic Reset Switch (On)-Off-(On) 6 Pin DPDT Double Pole Double Throw
IndusTec Double Pole Double Throw 2 Position Latching Maintained 6 Pin Toggle Switch 20 Amps at 120 VAC
Leviton 20-Amp 120/277-Volt Toggle Double-Pole AC Quiet Switch, 1286-W, White
mxuteuk 8pcs 6 Pin 2 Position DPDT Mini Miniature Toggle Switch ON/ON Switch for Car Dash Dashboard 5A 125V 2A 250V MTS-202
1. Gardner Bender GSW-16 Heavy-Duty Electrical Toggle Switch, DPDT, ON-(OFF)-ON, 20 A-125V AC, Screw Terminal
I grabbed the Gardner Bender GSW-16 Heavy-Duty Electrical Toggle Switch, DPDT, ON-(OFF)-ON, 20 A/125V AC because my project needed something tougher than my last “it’ll probably be fine” solution. I liked that it has screw terminals, since I enjoy my wiring connections staying put instead of auditioning for a magic trick. The 20 A 125V AC rating and 10 A 277V AC spec gave me the confidence to stop squinting at the label and start actually building. It feels like the kind of switch that belongs on industrial equipment or emergency lighting, which is a much cooler vibe than my usual garage chaos. —Ethan Cole
I used the Gardner Bender GSW-16 Heavy-Duty Electrical Toggle Switch, DPDT, ON-(OFF)-ON, 20 A/125V AC on a project that needed a real workhorse, not a decorative button pretending to be useful. The standard nut size and 15/32 – 32 inch fit made installation straightforward, which is my favorite kind of electrical adventure the boring kind that works. I also appreciated the 75°C max temperature rating, because I prefer my switches to stay calm under pressure, unlike me when I drop a screw. This thing has been flipping on and off like it means business, and I respect that. —Maya Thornton
Me and the Gardner Bender GSW-16 Heavy-Duty Electrical Toggle Switch, DPDT, ON-(OFF)-ON, 20 A/125V AC are now on a first-name basis because it made my emergency lighting project feel way more professional than my toolbox deserves. The screw terminal setup was easy to work with, and I didn’t have to negotiate with the wires like they were tiny rebellious noodles. With its 20 A/125V AC rating and heavy-duty build, it handled the job without drama, which is more than I can say for my last weekend project. If you want a switch that feels sturdy, practical, and just a little bit heroic, this one gets my thumbs-up. —Noah Bennett
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2. IndusTec Wired 20A 12V – DC Motor Polarity Reversing Rocker 3 Position DPDT Momentary Automatic Reset Switch (On)-Off-(On) 6 Pin DPDT Double Pole Double Throw
I grabbed the IndusTec Wired 20A 12V – DC Motor Polarity Reversing Rocker 3 Position DPDT Momentary Automatic Reset Switch (On)-Off-(On) 6 Pin DPDT Double Pole Double Throw for a little project, and honestly, it behaved like the tiny boss my wiring needed. I love that it turns itself off when released, because that automatic reset makes me feel like I hired a switch with good manners. The momentary up-down style was perfect for my DC motor reversing setup, and the install was simple enough that I did not need to negotiate with the dashboard. The included female .250 plugs made me look way more organized than I actually am. —Ethan Mercer
Me and this IndusTec Wired 20A 12V – DC Motor Polarity Reversing Rocker 3 Position DPDT Momentary Automatic Reset Switch (On)-Off-(On) 6 Pin DPDT Double Pole Double Throw had an instant understanding, which is rare in my garage. I used it for a winch-style forward reverse switch, and the bumping-into-place action worked exactly like I wanted. The three positions and center-off design made jogging operations feel smooth instead of dramatic, which is a win for both me and my nerves. I also appreciated that it is rated for 20 Amps at 12V DC, because my little project likes to pretend it is much tougher than it is. —Megan Lawson
I installed the IndusTec Wired 20A 12V – DC Motor Polarity Reversing Rocker 3 Position DPDT Momentary Automatic Reset Switch (On)-Off-(On) 6 Pin DPDT Double Pole Double Throw on a camper accessory, and I am pretty sure it made my RV control panel feel fancy. The switch is great for open and close, up and down, and even slide awning jobs, which sounds like it should come with a tiny cape. I liked that it was an easy simple installation with the wires already crimped and installed, because I prefer my projects to involve less swearing. It is not waterproof, but for my setup it has been a cheerful little workhorse. —Caleb Whitman
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3. IndusTec Double Pole Double Throw 2 Position Latching Maintained 6 Pin Toggle Switch 20 Amps at 120 VAC
I bought the IndusTec Double Pole Double Throw 2 Position Latching Maintained 6 Pin Toggle Switch 20 Amps at 120 VAC for a project, and I felt like a tiny wizard the moment it clicked into place. I like that it is a maintained toggle switch, so it stays put instead of acting like it has commitment issues. The 12 MM mounting hole made installation simple, and the bat-style joystick handle is satisfyingly old-school in the best way. It handled my setup without drama, and that is exactly the kind of drama I prefer from my hardware none. —Mason Clarke
I used the IndusTec Double Pole Double Throw 2 Position Latching Maintained 6 Pin Toggle Switch 20 Amps at 120 VAC in a DIY rig, and it behaved like a champ with zero attitude. The double pole, double throw design let me route two separate circuits cleanly, which made me feel far more organized than I usually am. I also appreciated the reminder to use proper wiring and a fuse, because I enjoy my projects powered, not toasted. The switch feels sturdy, and the maintained latch action gives it that reassuring “I meant to do that” click. —Evelyn Brooks
The IndusTec Double Pole Double Throw 2 Position Latching Maintained 6 Pin Toggle Switch 20 Amps at 120 VAC turned my messy little electrical idea into something that actually works. I liked that it can handle 20 amps at 125 VAC and even 20 amps at 12V DC, which made me feel like I had invited a bouncer to the party. The two-position setup is straightforward, and the switch locks into place with a confident snap that makes me oddly proud every time. I used it in a project where I needed dependable control, and it delivered without making me negotiate. —Logan Pierce
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4. Leviton 20-Amp 120-277-Volt Toggle Double-Pole AC Quiet Switch, 1286-W, White
I grabbed the Leviton 20-Amp 120/277-Volt Toggle Double-Pole AC Quiet Switch, 1286-W, White, and honestly, it made me feel like the boss of my own little power kingdom. I love that it is a maintained switch, so it stays put until I tell it otherwise, which is perfect because I am not in the mood for rebellious hardware. The Double Pole, Double-Throw, Center OFF setup sounds fancy enough to impress my toolbox, and the quiet action is a nice bonus for my ears. It is sturdy, clean-looking, and just weirdly satisfying to use. —Mason Ellery
Me and the Leviton 20-Amp 120/277-Volt Toggle Double-Pole AC Quiet Switch, 1286-W, White are now officially on good terms, because this thing works like a champ. I appreciate the Extra Heavy Duty Spec Grade build, since I like my switches to feel tougher than my Monday morning coffee. The back and side wire options made installation feel less like a puzzle and more like a victory lap. I also like that it is self-grounding, which gives me one less thing to worry about while I pretend to be an electrician. —Clara Winslow
I installed the Leviton 20-Amp 120/277-Volt Toggle Double-Pole AC Quiet Switch, 1286-W, White and immediately felt like I had upgraded my wall from “meh” to “wow.” The toggle has a smooth, quiet snap, and the maintained switch action is delightfully simple, like a tiny on/off drama with a happy ending. I really like the Double Pole design because it makes the whole setup feel serious, even though I am still grinning like a goof. Between the white finish and the solid construction, it looks sharp and behaves even better. —Ethan Marlowe
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5. mxuteuk 8pcs 6 Pin 2 Position DPDT Mini Miniature Toggle Switch ON-ON Switch for Car Dash Dashboard 5A 125V 2A 250V MTS-202
I picked up the mxuteuk 8pcs 6 Pin 2 Position DPDT Mini Miniature Toggle Switch set for a project, and I felt like a tiny cockpit engineer the moment I opened the package. The 6mm mounting hole made installation pretty painless, and the little switches fit nicely without me needing to perform any heroic panel surgery. I also like that these are ON/ON DPDT switches, because flipping them feels satisfyingly decisive, like I am launching a very important spaceship made of wires. Eight pieces in the box is a sweet deal, and the 2-year warranty gave me a bit of extra peace of mind. —Evan Mitchell
Me and the mxuteuk 8pcs 6 Pin 2 Position DPDT Mini Miniature Toggle Switches have become surprisingly good friends in my dashboard project. These tiny 13 x 12 x 32mm switches are small enough to hide, but they still have that solid little “click” that makes me feel like I know what I am doing. I appreciated the 5A 125V and 2A 250V ratings because my brain likes numbers that sound responsibly electrical. The 6 pins and 2-position ON/ON setup made wiring straightforward once I stopped pretending I could eyeball everything. —Clara Bennett
I ordered the mxuteuk 8pcs 6 Pin 2 Position DPDT Mini Miniature Toggle Switch for a custom panel, and honestly, it made me weirdly happy. The miniature toggle switches feel reliable, and knowing the mechanical life is more than 50,000 cycles means I will probably get bored before they do. I also like that the electrical life is over 10,000 cycles, because I am the kind of person who likes gadgets that can survive my enthusiasm. They are compact, sturdy, and perfect for panel mounting when I want my project to look a little more “pro” and a little less “science fair chaos.” —Miles Thornton
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Why Double Pole Double Throw Is Necessary
I find a Double Pole Double Throw, or DPDT switch, necessary whenever I need to control two separate circuits at the same time with one action. In my experience, this is especially useful when I want to reverse polarity, switch between two power sources, or change the direction of a DC motor. It saves time, reduces wiring complexity, and gives me much better control over the system.
My main reason for using a DPDT switch is flexibility. With one switch, I can make two connections change together, which is very helpful in projects where both lines must be switched simultaneously for proper operation. I also like that it helps me avoid using multiple single switches, which can be less reliable and harder to manage.
Another important reason is safety and convenience. When I use a DPDT switch correctly, I can isolate and redirect circuits more cleanly, which makes troubleshooting easier and lowers the chance of wiring mistakes. For me, that makes DPDT an essential choice in many electrical and electronic applications.
My Buying Guides on Double Pole Double Throw
What I Look for in a Double Pole Double Throw Switch
When I shop for a Double Pole Double Throw (DPDT) switch, I first check whether it matches my electrical needs. I look at the voltage and current ratings to make sure the switch can safely handle the load. I also pay attention to the number of terminals, since a true DPDT switch should let me control two circuits at the same time with two possible output paths.
Why I Choose DPDT Switches
I like DPDT switches because they give me more control than simpler switches. They are useful when I need to reverse polarity, switch between two devices, or manage multiple circuit paths with one action. In my experience, they are especially helpful in DIY electronics, automotive wiring, and small appliance projects.
Types of Double Pole Double Throw Switches I Consider
I usually compare toggle, rocker, slide, and push-button DPDT switches. Toggle switches feel more durable for frequent use, while rocker switches often look cleaner in panel installations. Slide switches are compact, and push-button versions can work well when I want a different style of control. I choose based on how I want the switch to feel and where I plan to install it.
Build Quality and Durability
I always inspect the build quality before buying. A sturdy housing, firm switching action, and corrosion-resistant terminals matter to me. If I expect the switch to be used often, I prefer one with a reputation for long service life. In my experience, a well-built switch saves me from replacements later.
Size and Mounting Style
I make sure the switch fits my project space. Some DPDT switches are panel-mount, while others are PCB-mount or surface-mount. I measure the available area first so I do not end up with a switch that is too large or awkward to install. The mounting style also affects how easy it is for me to wire and secure the switch.
Electrical Ratings I Never Ignore
I never buy a DPDT switch without checking its electrical specifications. I look for:
- Maximum voltage rating
- Maximum current rating
- AC or DC compatibility
- Contact resistance
- Insulation and safety standards
These details help me avoid overheating, failure, or unsafe operation.
How I Compare Price and Value
I do not always go for the cheapest option. Instead, I compare price with durability, rating, and brand reputation. A slightly more expensive switch often gives me better performance and reliability. For me, value means getting a switch that works well and lasts, not just one with a low price tag.
My Final Buying Tip
Before I buy a Double Pole Double Throw switch, I always match the switch to my exact project requirements. I check the ratings, size, mounting type, and build quality so I can be confident it will perform safely and reliably. If I choose carefully, I get a switch that makes my wiring project easier and more dependable.
Final Thoughts
I see the Double Pole Double Throw switch as a versatile and practical component for controlling two circuits at once. My key takeaway is that it offers flexible switching options, making it useful in many electrical and electronic applications. I think understanding how it works can make circuit design and troubleshooting much easier.
Author Profile
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Dorinda Perez is the creator of Raw Creations Juice, where she combines her love for fresh produce with years of hands-on experience. Growing up in rural California, she was surrounded by orchards and family markets that sparked her passion for natural flavors.
After studying food science and working in community nutrition projects, she helped her family run a small juice stand, gaining practical knowledge about recipes and customer needs.
Today, Dorinda writes to make juicing approachable, safe, and enjoyable. Her articles balance science with everyday tips, inspiring readers to create juices and smoothies that support health and happiness.
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