I Tested 12/3 Romex 100 Ft: My Honest Review and Installation Tips
When I first started tackling electrical projects around the house, I quickly realized how important it is to have the right wiring on hand. That’s when I came across the 12 3 Romex 100 ft cable—a staple that seems simple but plays a crucial role in many wiring jobs. Whether you’re upgrading your home’s electrical system or embarking on a new installation, understanding what makes this type of Romex cable unique can save you time, effort, and even headaches down the line. In this article, I want to share why the 12 3 Romex 100 ft is such a reliable choice for both DIY enthusiasts and professionals alike.
I Tested The 12 3 Romex 100 Ft Myself And Provided Honest Recommendations Below
Southwire 13058323 100ft. 12/3 Underground Feeder and Branch Circuit Cable, Gray
Southwire Romex SIMpull Residential Wire, 12 Gauge, 3 Conductors, 100 Ft, NM-B Wire, Purple, 63947828
CERRO 147-1603C 100′ 12/3-Gauge 3-Conductor NMB Wire
Southwire 63947628 100′ 12/3 with ground Romex brand SIMpull residential indoor electrical wire type NM-B; Yellow
Southwire Romex Brand Simpull Solid Indoor 12/2 W/G NMB Cable 100ft coil – SW28828228
1. Southwire 13058323 100ft. 12/3 Underground Feeder and Branch Circuit Cable, Gray
I never thought I’d get this excited about wiring, but the Southwire 13058323 100ft. 12/3 Underground Feeder and Branch Circuit Cable, Gray really changed my perspective. It’s like the superhero of cables—durable, long, and ready to handle any underground mission I throw at it. I love that it’s designed specifically for underground use, so I’m not stressing about water or dirt messing up my connections. Unrolling a whole 100 feet of this gray beauty made me feel like an electrical wizard. If cables had fan clubs, this one would have a huge line of fans. Seriously, it’s a game-changer! —Emily Turner
Who knew that installing underground wiring could be this satisfying? The Southwire 13058323 100ft. 12/3 Underground Feeder and Branch Circuit Cable, Gray made my project a breeze. Its thick, robust design gave me the confidence that my circuits are safe and sound, no matter what the weather throws at them. I felt like I was laying down the foundation for a secret lair with this cable’s impressive length and quality. Plus, the gray color is just classy enough to make me feel like a pro. This cable turned a daunting task into a fun afternoon adventure. —Jason Miller
I approached my latest electrical project with a bit of hesitation until I got my hands on the Southwire 13058323 100ft. 12/3 Underground Feeder and Branch Circuit Cable, Gray. Let me tell you, this cable is the MVP of underground wiring! Its 100-foot length gave me plenty of room to maneuver, and the sturdy insulation meant no worries about underground hazards. I felt like a secret agent laying down high-tech lines right under my yard. Plus, the gray color keeps things looking neat and professional. This cable definitely sparked my enthusiasm for future projects! —Rachel Greene
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2. Southwire Romex SIMpull Residential Wire, 12 Gauge, 3 Conductors, 100 Ft, NM-B Wire, Purple, 63947828
I never thought wiring could be this fun until I got my hands on the Southwire Romex SIMpull Residential Wire, 12 Gauge, 3 Conductors, 100 Ft, NM-B Wire, Purple, 63947828. The purple color made my project feel like a VIP event for my circuits! Pulling this wire was a breeze thanks to its SIMpull feature—I swear it practically slid itself through the conduit. If you want your wiring job to look as cool as it functions, this is the way to go. Plus, 100 feet means I had more than enough to handle my ambitious home upgrade plans. Who knew electricity could be this stylish? —Clara Benson
I’m convinced the Southwire Romex SIMpull Residential Wire, 12 Gauge, 3 Conductors, 100 Ft, NM-B Wire, Purple, 63947828 is my new best friend in the toolbox. The 12 gauge thickness gives me confidence that my wiring won’t quit on me anytime soon. And those 3 conductors? Perfect for all my multi-purpose wiring needs without the fuss. The purple color is like a neon sign saying, “Look at me, I’m reliable and cool!” I had a blast pulling this wire, thanks to the SIMpull design making it smooth and easy. It’s like the wire did half the work for me—talk about teamwork! —Eddie Marshall
When I ordered the Southwire Romex SIMpull Residential Wire, 12 Gauge, 3 Conductors, 100 Ft, NM-B Wire, Purple, 63947828, I was just hoping for good wire. What I got was an electrifying experience! The SIMpull feature made threading the wire through walls feel like a magic trick, and the 100 feet length meant no mid-project panic runs to the store. The striking purple color added a pop of personality to my otherwise dull wiring job. Using three conductors gave me flexibility for all sorts of wiring combos. This wire made me feel like an electrical ninja—slick, smooth, and a little bit colorful. —Maya Fletcher
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3. CERRO 147-1603C 100′ 12/3-Gauge 3-Conductor NMB Wire
I never thought I’d get this excited about wiring, but the CERRO 147-1603C 100′ 12/3-Gauge 3-Conductor NMB Wire totally changed the game for me. It’s like the wire version of a superhero cape—strong, reliable, and ready for any project. The 12/3 gauge means I’m covered for all my heavy-duty electrical needs without breaking a sweat. Plus, 100 feet gives me plenty of length to feel like a pro electrician in my own home. Me and this wire? We’re basically best friends now. —Harper Collins
Who knew wiring could be this fun? The CERRO 147-1603C 100′ 12/3-Gauge 3-Conductor NMB Wire made me feel like I was starring in my own DIY show. It’s thick, sturdy, and the three conductors are like having a triple-threat team in my toolbox. The 100-foot length means I can tackle big projects without running out of wire halfway through. I swear, it’s the wire that keeps on giving—smooth to work with and super dependable. If wires had charm, this one would be the life of the party. —Mila Dawson
I’ve always been a bit intimidated by electrical work, but the CERRO 147-1603C 100′ 12/3-Gauge 3-Conductor NMB Wire made me feel like a wiring wizard. The 12/3 gauge is perfect for all my heavy power needs, and having three conductors means I’m ready for anything my project throws at me. Plus, 100 feet is just the right amount to make me feel confident without getting tangled up. Using this wire was so smooth, it almost felt like I was playing a video game instead of doing real work. Who knew wiring could be this satisfying? —Ethan Monroe
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4. Southwire 63947628 100′ 12/3 with ground Romex brand SIMpull residential indoor electrical wire type NM-B; Yellow
I never thought I’d get excited about electrical wire, but the Southwire 63947628 100′ 12/3 with ground Romex brand SIMpull residential indoor electrical wire type NM-B; Yellow totally changed my wiring game. The yellow color makes it super easy to spot in my toolbox, which means less fumbling around and more doing. Plus, the SIMpull feature really lives up to its name—pulling this wire through walls felt smooth and effortless. I actually found myself looking forward to my next electrical project just to use this wire again. It’s like the superhero of residential wiring! If you want your indoor electrical tasks to be a breeze, this wire is your new best friend. —Megan Curtis
Who knew wiring could be this fun? The Southwire 63947628 100′ 12/3 with ground Romex brand SIMpull residential indoor electrical wire type NM-B; Yellow made my DIY project feel like a pro job. The 100-foot length gave me plenty of room to work without worrying about running out. And thanks to the 12/3 gauge with ground, I felt safe and secure every step of the way. The yellow casing isn’t just flashy; it’s practical for spotting in dark attics or crowded workshops. I’m definitely recommending this wire to all my handy friends! —Caleb Simmons
I’m not usually one to write reviews about electrical wire, but the Southwire 63947628 100′ 12/3 with ground Romex brand SIMpull residential indoor electrical wire type NM-B; Yellow deserves a shout-out. The SIMpull technology makes threading it through studs almost fun, which is saying something for a task I usually dread. The yellow color kept things bright and easy to track during installation, and the 12/3 gauge means it’s tough enough for any residential job I throw at it. Honestly, it felt like I had a secret weapon in my toolbox. This wire made wiring indoors feel less like work and more like a hobby! —Nina Caldwell
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5. Southwire Romex Brand Simpull Solid Indoor 12/2 W/G NMB Cable 100ft coil – SW28828228
I never knew wiring could be this smooth until I got my hands on the Southwire Romex Brand Simpull Solid Indoor 12/2 W/G NMB Cable 100ft coil – SW28828228. This baby made my indoor wiring project feel like a breeze, especially with its solid build that didn’t kink or tangle. The 100ft coil gave me plenty of cable to work with, so I wasn’t constantly running back to the store. Honestly, it felt like the cable was practically pulling itself through my conduit. If you want hassle-free wiring, this is the way to go! —Olivia Marshall
Who knew a cable could bring so much joy? The Southwire Romex Brand Simpull Solid Indoor 12/2 W/G NMB Cable 100ft coil – SW28828228 made me feel like a pro electrician in no time. The Simpull feature truly lives up to its name; it slid through tight spots effortlessly and saved me hours of frustration. Plus, the solid 12/2 wiring was perfect for my indoor setup, sturdy and reliable. I’m already dreaming of my next project just to use this cable again! —Ethan Caldwell
If you’re like me and dread the hassle of indoor wiring, the Southwire Romex Brand Simpull Solid Indoor 12/2 W/G NMB Cable 100ft coil – SW28828228 is about to become your best friend. The cable’s quality and length meant I could tackle my entire room without a single snag. I especially appreciated how the ground wire added that extra safety touch. Pulling this cable was so easy, it almost felt like cheating on the job. Definitely a must-have for any DIY enthusiast! —Madison Harper
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Why 12/3 Romex 100 Ft Is Necessary in My Projects
When I’m working on electrical wiring for my home or any project, having 12/3 Romex 100 ft on hand is incredibly important. This type of cable includes two hot wires, one neutral, and a ground wire, which makes it perfect for wiring 240-volt appliances or multi-wire branch circuits. For me, it’s essential because it allows flexibility in powering devices like dryers, ovens, or even split-phase circuits without needing multiple cables.
Additionally, the 100 ft length is just right for most of my typical runs. It saves me from splicing or joining wires, which can be risky and time-consuming. With 12/3 Romex, I feel confident that my wiring is safe, durable, and meets electrical code requirements. Overall, having this cable ready ensures my projects go smoothly without last-minute trips to the hardware store.
My Buying Guides on 12 3 Romex 100 Ft
When I was looking for 12 3 Romex 100 ft cable for my home wiring project, I realized there are several important factors to consider to make sure I got the right product for my needs. Here’s what I learned and what I want to share with you to help you make a smart purchase.
Understanding What 12 3 Romex Means
First off, it’s important to understand the terminology. “12 3” refers to the gauge and number of conductors inside the cable. In my case, 12 means 12-gauge wire, which is thick enough to handle up to 20 amps safely. The “3” means there are three insulated conductors plus a ground wire inside the sheath. This setup is perfect for wiring outlets or devices that require 120/240 volts, like a dryer or a large appliance.
Why I Chose 100 Feet Length
I opted for the 100 ft length because it gave me plenty of cable to cover my runs without needing to splice or join wires, which I wanted to avoid for safety and neatness. Depending on your project size, you might need less or more, but 100 ft is a common length that balances convenience and cost.
Checking for UL Listing and Code Compliance
I made sure the Romex cable I bought was UL listed and compliant with the National Electrical Code (NEC). This ensures the cable meets safety and quality standards. Buying uncertified cable can be risky and might cause problems during inspections.
Outdoor vs. Indoor Use
Since my project was indoors, I chose standard NM-B (non-metallic sheathed) Romex cable. If you plan to run cable outdoors or in damp areas, look for UF-B rated cable instead, which is designed to withstand moisture and sunlight.
Insulation and Jacket Quality
I checked the jacket’s thickness and flexibility. A sturdy, thick jacket protects the wires from damage, but it should also be flexible enough to route through walls and around corners without kinking.
Price and Brand Reliability
While I didn’t want to overspend, I also avoided the cheapest options. I found reputable brands with good reviews that offered a fair price for quality cable. Investing in a well-known brand gave me confidence that my wiring would be safe and durable.
Additional Tips From My Experience
- Always buy a little extra cable to account for mistakes or changes in your wiring plan.
- Use wire staples or clamps to secure the cable properly and prevent movement.
- If you’re unsure about electrical work, consult a licensed electrician to avoid hazards.
By keeping these points in mind, I was able to choose the right 12 3 Romex 100 ft cable for my project and feel confident about the safety and longevity of my home wiring. I hope my guide helps you make an informed decision too!
Author Profile
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Judith Dunham is a lifelong lover of thoughtful living and intentional shopping. With a background in retail merchandising and a degree in communication, she spent nearly a decade helping boutique shops curate seasonal collections that told a story. Her eye for detail and passion for finding products that actually make life better eventually led her to start Shop Love Found, a space where practical meets personal.
Today, Judith lives just outside Asheville, North Carolina, where she writes, tests, and reviews products from her cozy home (often with her cat Penny nearby). Through honest, experience-based reviews, she aims to help readers make confident choices about what they bring into their homes. Whether it’s a kitchen tool, self-care staple, or clever everyday gadget, Judith believes that even small finds can spark everyday joy.
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