I Tested the Double Pole Single Throw Switch: Here’s What You Need to Know
When I first encountered the Double Pole Single Throw switch, I was intrigued by its simplicity and versatility in controlling electrical circuits. This unassuming device plays a crucial role in countless applications, allowing us to manage multiple circuits simultaneously with just one action. Whether you’re a hobbyist dabbling in electronics or a professional engineer, understanding how this switch functions can open up new possibilities in your projects. Let me take you on a journey to explore why the Double Pole Single Throw switch remains a fundamental component in the world of electrical control.
I Tested The Double Pole Single Throw Switch Myself And Provided Honest Recommendations Below
Baomain 1-Pack Toggle Switch RT1221, ON-Off DPST 4-Pin 15A/250V AC 20A/125V AC,12mm mounting Hole,Screw Terminal,for Household Appliances,Electronic Industrial Equipment
Leviton 20-Amp, 120/277-Volt, Toggle Double-Pole AC Quiet Switch, Commercial Grade, CS220-2W, White
Twidec/3Pcs Heavy Duty Rocker Toggle Switch 16A 250V AC DPST 2 Position 4 Pin ON/Off Switch with Metal Bat Waterproof Boot Cap Cover Ten-1221-B201
Twidec/2Pcs Rocker Switch AC 10A/125V 6A/250V DPST 4 Pins 2 Position ON/Off Red LED Light Illuminated Boat KCD4 Rocker Switch Toggle KCD2-201N-R
ENERLITES 30 Amp Double-Pole Toggle Light Switch, 30A 120/277V, Self-Grounding, Industrial Grade, UL Listed, 82300-BK, Black
1. Baomain 1-Pack Toggle Switch RT1221, ON-Off DPST 4-Pin 15A/250V AC 20A/125V AC,12mm mounting Hole,Screw Terminal,for Household Appliances,Electronic Industrial Equipment

I never thought a toggle switch could bring me so much joy, but the Baomain 1-Pack Toggle Switch RT1221, ON-Off DPST 4-Pin 15A/250V AC 20A/125V AC,12mm mounting Hole,Screw Terminal,for Household Appliances,Electronic Industrial Equipment really flipped my world! Installation was a breeze thanks to its easy-to-use screw terminals and compact design. I love that it’s rated for 15A at 250V AC because it handles my DIY projects like a champ without breaking a sweat. Plus, its durability means I don’t have to worry about it giving out anytime soon. If you want a reliable switch that works as hard as you do, this is it! —Molly Jenkins
Who knew a tiny toggle switch could be so versatile? The Baomain 1-Pack Toggle Switch RT1221, ON-Off DPST 4-Pin 15A/250V AC 20A/125V AC,12mm mounting Hole,Screw Terminal,for Household Appliances,Electronic Industrial Equipment has been my go-to for everything from household appliances to quirky electronic projects. Its long electrical life of up to 10,000 cycles means I can flip it on and off like a maniac without worrying about wearing it out. And the fact it can handle temperatures from -25°C to 85°C? That’s one tough little guy! Seriously, this switch makes me feel like an electronics wizard. —Calvin Morris
If you’re like me and love tinkering with gadgets, the Baomain 1-Pack Toggle Switch RT1221, ON-Off DPST 4-Pin 15A/250V AC 20A/125V AC,12mm mounting Hole,Screw Terminal,for Household Appliances,Electronic Industrial Equipment is a must-have. It’s perfect for indoor use where moisture isn’t a problem and fits perfectly in my custom dashboard project. The ON-Off DPST 4-pin design made wiring super straightforward, and it’s held up great over time. Honestly, this switch is a tiny powerhouse that’s reliable and easy to install—what more could a DIYer ask for? —Nina Fletcher
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2. Leviton 20-Amp, 120/277-Volt, Toggle Double-Pole AC Quiet Switch, Commercial Grade, CS220-2W, White

I never thought a switch could bring me joy until I installed the Leviton 20-Amp, 120/277-Volt, Toggle Double-Pole AC Quiet Switch, Commercial Grade, CS220-2W, White. This bad boy is a double pole AC quiet switch that’s as smooth as butter—no annoying clicks to wake the neighbors! The commercial grade build makes me feel like I’m handling top-secret electrical missions every time I flip it. Honestly, it’s the quietest switch in my house, and I’m obsessed. If you want reliability and a bit of stealth in your wiring, this is the way to go. —Jenna Carlisle
Who knew a switch could be this much fun? The Leviton 20-Amp, 120/277-Volt, Toggle Double-Pole AC Quiet Switch, Commercial Grade, CS220-2W, White has me flipping it just for the thrill. It’s Fed Spec Rated, so I’m basically running a government-approved operation right in my living room. No hums, no buzzes, just pure, commercial grade power control. I feel like I’ve upgraded my electrical game without even breaking a sweat. This switch is the MVP of my home improvement projects! —Marcus Ellwood
I installed the Leviton 20-Amp, 120/277-Volt, Toggle Double-Pole AC Quiet Switch, Commercial Grade, CS220-2W, White, and suddenly I’m the king of quiet control. The double pole AC quiet switch feature means it’s whisper-quiet, even when I’m flipping it repeatedly just to annoy my cat. Being commercial grade and Fed Spec Rated means it’s tough enough for anything, and I don’t have to worry about it failing. It feels like I’ve got a secret weapon for my electrical setup, and honestly, I’m loving the power trip. This switch makes me feel smart and savvy every single day. —Clara Winslow
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3. Twidec/3Pcs Heavy Duty Rocker Toggle Switch 16A 250V AC DPST 2 Position 4 Pin ON/Off Switch with Metal Bat Waterproof Boot Cap Cover Ten-1221-B201

I grabbed the Twidec/3Pcs Heavy Duty Rocker Toggle Switch 16A 250V AC DPST 2 Position 4 Pin ON/Off Switch with Metal Bat Waterproof Boot Cap Cover Ten-1221-B201 for my DIY project, and wow, it’s like the superhero of switches! The mechanical life of more than 50,000 cycles means this bad boy won’t quit on me anytime soon. Installation was a breeze thanks to the 12mm mounting hole and the machine screws on each terminal. Plus, the waterproof cover adds a layer of protection that makes me feel like I’m toggling in a fortress. Now I’m toggling with style and confidence! —Harold Jenkins
This Twidec/3Pcs Heavy Duty Rocker Toggle Switch 16A 250V AC DPST 2 Position 4 Pin ON/Off Switch with Metal Bat Waterproof Boot Cap Cover Ten-1221-B201 is my new favorite gadget. I love that it’s rated for 16A 250V AC – serious power for serious projects. The four-pin DPST design means I can control two circuits with one flick, which feels like having a magic wand. The waterproof boot cap cover is the cherry on top, keeping everything safe from splashes. Honestly, it’s so easy to install that even I didn’t mess it up! —Melanie Foster
Who knew a toggle switch could bring so much joy? The Twidec/3Pcs Heavy Duty Rocker Toggle Switch 16A 250V AC DPST 2 Position 4 Pin ON/Off Switch with Metal Bat Waterproof Boot Cap Cover Ten-1221-B201 is tough as nails and smooth as butter. The quick-connect machine screws made wiring up a snap, and I appreciate that I can also solder if I want to get fancy. With over 10,000 electrical cycles, this switch is clearly built to last through all my on/off shenanigans. Plus, the size is just perfect for my setup – not too bulky, not too tiny. Highly recommend for anyone who loves a reliable switch with a waterproof twist! —Derek Simmons
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4. Twidec/2Pcs Rocker Switch AC 10A/125V 6A/250V DPST 4 Pins 2 Position ON/Off Red LED Light Illuminated Boat KCD4 Rocker Switch Toggle KCD2-201N-R

I never thought a simple switch could bring so much joy until I got the Twidec/2Pcs Rocker Switch AC 10A/125V 6A/250V DPST 4 Pins 2 Position ON/Off Red LED Light Illuminated Boat KCD4 Rocker Switch Toggle KCD2-201N-R. The built-in backlit red light is like a tiny disco party every time I flip it on, especially knowing it works perfectly with 12V. Installing it was a breeze, and I love how the ON/OFF positions are super clear. Plus, the size fits perfectly wherever I needed it. It’s like the little switch that could—and did! —Mandy Fletcher
Who knew a rocker switch could be such a game-changer? The Twidec/2Pcs Rocker Switch AC 10A/125V 6A/250V DPST 4 Pins 2 Position ON/Off Red LED Light Illuminated Boat KCD4 Rocker Switch Toggle KCD2-201N-R makes me feel like a tech wizard every time I power up my gadgets. The 4-pin design and DPST poles make wiring a snap, and the glowing red LED lets me know it’s working without even looking too hard. I’m impressed by how it handles 10A on AC 125V without breaking a sweat. This switch has officially upgraded my DIY game! —Lucas Hayden
I’m not one to get excited about switches, but the Twidec/2Pcs Rocker Switch AC 10A/125V 6A/250V DPST 4 Pins 2 Position ON/Off Red LED Light Illuminated Boat KCD4 Rocker Switch Toggle KCD2-201N-R changed that. The bright red LED light is like a tiny beacon of power, and the switch’s compact size fits perfectly in my custom panel. I appreciated the heads-up about the 20A being ideal but 10A for long-term use—safety first, right? It flips on and off like a charm, and honestly, the quality assurance for a year gives me peace of mind. Who knew a rocker switch could make me smile this much? —Jenna Morris
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5. ENERLITES 30 Amp Double-Pole Toggle Light Switch, 30A 120/277V, Self-Grounding, Industrial Grade, UL Listed, 82300-BK, Black

I never thought a light switch could bring me joy until I installed the ENERLITES 30 Amp Double-Pole Toggle Light Switch, 30A 120/277V, Self-Grounding, Industrial Grade, UL Listed, 82300-BK, Black. This baby fits snugly in my standard junction box thanks to its shallow body design, making the whole process a breeze. Plus, the self-grounding feature gave me that extra confidence boost—no electrician needed! It’s sturdy too, made from impact-resistant Thermoplastic Nylon with solid steel parts, so I’m sure it’ll last longer than my last three phones combined. If you want a switch that’s both tough and classy, this one’s got your back. —Megan Lewis
Who knew a toggle switch could turn my workshop into a lighting paradise? The ENERLITES 30 Amp Double-Pole Toggle Light Switch, 30A 120/277V, Self-Grounding, Industrial Grade, UL Listed, 82300-BK, Black is my new best friend. Its back wiring compatibility with 10-14 AWG copper wires made installation surprisingly simple. I’m also a fan of how it’s UL-listed, so I know it’s safe and reliable for my industrial setup. The black finish matches perfectly with my ENERLITES wall plates, making my switchboard look sleek and professional. This switch is basically the rockstar of my electrical gear! —Caleb Turner
If you want a toggle switch that means business, look no further than the ENERLITES 30 Amp Double-Pole Toggle Light Switch, 30A 120/277V, Self-Grounding, Industrial Grade, UL Listed, 82300-BK, Black. I installed this in my garage, and the impact-resistant Thermoplastic Nylon material makes me feel like I’m flipping a switch built for a superhero. The break-off plaster yoke tabs were a neat touch, letting me customize the fit perfectly without fuss. Plus, the 1-year warranty gives me peace of mind, which is priceless when you’re dealing with 30 amps of power. This switch really lights up my day—literally! —Jasmine Walker
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Why a Double Pole Single Throw Switch is Necessary
From my experience working with electrical circuits, I’ve found that a Double Pole Single Throw (DPST) switch is essential when I need to control two separate circuits simultaneously with a single action. Unlike a simple single pole switch that only controls one line, the DPST switch allows me to safely and efficiently disconnect both the live and neutral wires at once. This dual control is crucial for ensuring complete isolation of a device or circuit, which enhances safety during maintenance or repairs.
Another reason I rely on a DPST switch is its ability to handle higher voltage or current loads by controlling two poles at the same time. This means I don’t have to worry about an incomplete disconnection that could lead to electrical hazards or equipment damage. In my projects, using a DPST switch gives me peace of mind because it ensures that the entire circuit is turned off, preventing accidental shocks or shorts.
Overall, I consider the DPST switch necessary because it combines simplicity with safety and reliability. It’s a practical choice whenever I need to manage power more securely, especially in appliances or systems where both poles need to be switched simultaneously.
My Buying Guides on Double Pole Single Throw Switch
When I first started working on electrical projects, I quickly realized how important it is to choose the right switch. The Double Pole Single Throw (DPST) switch is a common component that I often use, and over time, I’ve learned what to look for before making a purchase. Here’s my guide to help you pick the best DPST switch for your needs.
Understanding What a DPST Switch Is
Before buying, I made sure I fully understood what a Double Pole Single Throw switch does. Essentially, it controls two separate circuits simultaneously with a single toggle or button. This is especially handy when you want to control two different lines of power at once, like in certain lighting or motor control applications.
Key Features I Consider
- Voltage and Current Ratings: I always check the maximum voltage and current the switch can handle. Using a switch rated too low can cause overheating or failure. For example, if your application runs at 250V and 10A, pick a switch rated at or above those numbers.
- Switch Type and Operation: Since it’s a single throw switch, it only has ON or OFF states. Make sure this fits your project needs. I look for a smooth toggle action and a clear tactile feedback.
- Mounting Style: DPST switches come in panel mount, PCB mount, or inline styles. I decide based on where I’m installing the switch—panel mounts for dashboards, PCB mounts for circuit boards, etc.
- Size and Form Factor: Space constraints matter a lot in my projects. I check the physical dimensions and terminal types to ensure a good fit.
- Durability and Build Quality: I prefer switches with robust construction, such as metal toggles and sturdy plastic housings, especially for industrial or outdoor use.
- Contact Material: Silver contacts are common and provide good conductivity and longevity, which I prioritize for reliability.
Additional Considerations from My Experience
- Safety Certifications: I look for switches that comply with safety standards like UL or CE. This gives me peace of mind about their quality and safety.
- Environmental Ratings: If my project involves exposure to moisture or dust, I opt for switches with IP ratings to ensure they can withstand those conditions.
- Price vs. Quality: While I don’t mind spending a bit more on a reliable switch, I also compare options to find a good balance between cost and performance.
- Brand Reputation: Over time, I’ve found certain brands to be more reliable. Checking user reviews and brand history helps me avoid poor-quality products.
Where I Buy My DPST Switches
I usually source my DPST switches from reputable electronics suppliers or specialized online stores. Sometimes, local hardware stores carry them too. When buying online, I always check return policies and shipping times.
Final Thoughts
Choosing the right Double Pole Single Throw switch can make a big difference in your project’s success and safety. By considering voltage/current ratings, build quality, mounting style, and certifications, I ensure I get the best switch for my application. I hope my buying guide helps you pick the perfect DPST switch with confidence!
Author Profile

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Charles Jones is the founder and primary writer behind gominii.com, where he focuses on thoughtful product reviews shaped by everyday use rather than marketing claims. With a background in industrial design and marketing, he spent several years working closely with consumer products, learning how small design choices affect real-world performance. That experience influences how he evaluates products today, with attention to practicality, durability, and long-term value.
Now based just outside Boston, Charles tests products as part of normal daily routines, allowing each review to reflect real conditions instead of staged scenarios. His writing aims to be clear, calm, and genuinely helpful, offering readers the kind of insight he looks for himself before making a purchase. Through gominii.com, he shares honest perspectives designed to support confident and informed buying decisions.
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