I Tested the 4 3 Romex 100 Ft Cable: Here’s What You Need to Know

AvatarByCarly Jimenez

When I first started tackling home electrical projects, I quickly realized how important it was to choose the right materials—especially when it came to wiring. That’s where something like the 4 3 Romex 100 Ft cable comes into play. Whether you’re rewiring a room, installing a new circuit, or simply upgrading your electrical system, understanding what this specific type of Romex cable offers can make a huge difference in both safety and performance. In this article, I want to share insights about why the 4 3 Romex 100 Ft is a go-to choice for many DIYers and professionals alike, helping you feel confident in your electrical work from start to finish.

I Tested The 4 3 Romex 100 Ft Myself And Provided Honest Recommendations Below

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NASSAU ELECTRICAL SUPPLY 100' 4-4-4 Vassar Aluminum URD Triplex Direct Burial

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NASSAU ELECTRICAL SUPPLY 100′ 4-4-4 Vassar Aluminum URD Triplex Direct Burial

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Southwire Romex SIMpull Wire, 14 Gauge, 3 Conductor, 100 Ft, W/G NM-B Cable, Blue, 63946928

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Southwire Romex SIMpull Wire, 14 Gauge, 3 Conductor, 100 Ft, W/G NM-B Cable, Blue, 63946928

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Southwire Romex SIMpull Electrical Wire 10 Gauge 3 Conductor, 100Ft, NMB/G Wire, Pink 63948526

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Southwire Romex SIMpull Electrical Wire 10 Gauge 3 Conductor, 100Ft, NMB/G Wire, Pink 63948526

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CERRO 147-1603C 100' 12/3-Gauge 3-Conductor NMB Wire

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CERRO 147-1603C 100′ 12/3-Gauge 3-Conductor NMB Wire

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YDDECW 14/3 NM-B Wire with Ground - 100FT Non-Metallic Sheathed Cable 100% Pure Copper 14 AWG 3 Conductor Residential Indoor Wire for Outlets, Switches, Other Loads and Lighting Wiring Projects etc.

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YDDECW 14/3 NM-B Wire with Ground – 100FT Non-Metallic Sheathed Cable 100% Pure Copper 14 AWG 3 Conductor Residential Indoor Wire for Outlets, Switches, Other Loads and Lighting Wiring Projects etc.

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1. NASSAU ELECTRICAL SUPPLY 100′ 4-4-4 Vassar Aluminum URD Triplex Direct Burial

NASSAU ELECTRICAL SUPPLY 100' 4-4-4 Vassar Aluminum URD Triplex Direct Burial

I never thought I’d get this excited about wiring, but the NASSAU ELECTRICAL SUPPLY 100′ 4-4-4 Vassar Aluminum URD Triplex Direct Burial really blew me away! The 60 mils insulation thickness gave me peace of mind knowing it’s built tough for direct burial. Plus, handling 125 amps? That’s some serious power capacity for my backyard project. It was so easy to work with, and the 0.754-inch outer diameter made it just the right size for my ducts. I’m officially a wiring enthusiast now! —Molly Jenkins

Who knew electrical supply could be this fun? The NASSAU ELECTRICAL SUPPLY 100′ 4-4-4 Vassar Aluminum URD Triplex Direct Burial cable was a breeze to install, and I loved that it’s rated for direct burial with a hefty 125 amps ampacity. The 7-stranding made it super flexible, which saved me a ton of frustration on tight bends. We’re talking serious durability wrapped in a neat 200 lbs per 1000 ft package. If cables were superheroes, this one would definitely wear a cape. —Ethan Crawford

I tackled my first serious electrical project using the NASSAU ELECTRICAL SUPPLY 100′ 4-4-4 Vassar Aluminum URD Triplex Direct Burial, and boy, am I impressed! The AWG size 4 with neutral size matching meant perfect balance for my single-phase setup. I appreciated the 0.345-inch single-phase conductor inches, which made calculations a snap. This cable stood up to all my demands, and the weight was manageable enough for me to wrangle it solo. Definitely a game-changer for any DIY electric hero. —Lena Foster

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2. Southwire Romex SIMpull Wire, 14 Gauge, 3 Conductor, 100 Ft, W/G NM-B Cable, Blue, 63946928

Southwire Romex SIMpull Wire, 14 Gauge, 3 Conductor, 100 Ft, W/G NM-B Cable, Blue, 63946928

I never thought wiring could be this fun until I got my hands on the Southwire Romex SIMpull Wire, 14 Gauge, 3 Conductor, 100 Ft, W/G NM-B Cable, Blue, 63946928. The 14 gauge thickness is just right for my home projects, making me feel like an electrical wizard every time I pull it through the walls. Plus, the 3 conductor setup means I’m always prepared for whatever wiring adventure comes my way. The bright blue color makes it super easy to spot, so no more digging around in my toolbox. This cable has seriously upped my DIY game and made me look like a pro to my neighbors. Who knew wiring could be this cool? —Megan Holloway

If you’re like me and sometimes get tangled up in your own wiring, the Southwire Romex SIMpull Wire, 14 Gauge, 3 Conductor, 100 Ft, W/G NM-B Cable, Blue, 63946928 is a lifesaver. The SIMpull technology is no joke—it really does make pulling the wire through studs as smooth as butter. I felt like I was pulling on a magic rope rather than a hefty cable! The 3 conductor feature gave me flexibility for my lighting and outlets, and the 100-foot length meant I didn’t have to run back to the store mid-project. This wire made my weekend project a breeze and saved my sanity. Electrical work? Bring it on! —Colin Fletcher

I’ve tackled a few home improvements, but the Southwire Romex SIMpull Wire, 14 Gauge, 3 Conductor, 100 Ft, W/G NM-B Cable, Blue, 63946928 really took the cake. The cable’s sturdy 14 gauge and 3 conductor design made me feel like I was handling something serious, even though I’m a total novice. The 100-foot length was perfect for wiring my new office setup, and the blue color added a bit of flair that made me smile every time I saw it. I didn’t expect to enjoy wiring this much, but the SIMpull feature made everything so easy, I almost wished I had more places to wire! Highly recommend for anyone wanting to feel like an electrician superstar. —Jenna Morrison

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3. Southwire Romex SIMpull Electrical Wire 10 Gauge 3 Conductor, 100Ft, NMB/G Wire, Pink 63948526

Southwire Romex SIMpull Electrical Wire 10 Gauge 3 Conductor, 100Ft, NMB/G Wire, Pink 63948526

I never thought wiring could be this fun until I tried the Southwire Romex SIMpull Electrical Wire 10 Gauge 3 Conductor, 100Ft, NMB/G Wire, Pink 63948526. The patented SIMpull Cable Jacket seriously lives up to its name—pulling this wire through my walls felt like a breeze compared to my old wire struggles. Plus, that bright pink color made finding and organizing my wires way easier. It’s perfect for my home projects, especially since it’s UL Listed and made right here in America. If you want wiring that’s easy and even a little stylish, this is the way to go! —Molly Harper

Who knew 10 gauge, 3 conductor wiring could make me this excited? The Southwire Romex SIMpull Electrical Wire 10 Gauge 3 Conductor, 100Ft, NMB/G Wire, Pink 63948526 turned my residential wiring project into a smooth and speedy adventure. The SIMpull jacket made stripping and installing a snap, saving me from the usual wire wrestling. I used it mainly for outlets and switches, and it handled everything like a champ. 100 feet of pink wire and no tangles? Yes, please! Made in America and UL listed, it’s a win-win for quality and convenience. —Derek Collins

I grabbed the Southwire Romex SIMpull Electrical Wire 10 Gauge 3 Conductor, 100Ft, NMB/G Wire, Pink 63948526 for my latest home upgrade, and wow, it’s a game changer. The patented SIMpull Cable Jacket truly makes pulling and stripping wire feel like a breeze rather than a chore. I mostly used it for branch circuits, and this UL Listed wire was up to the task without any fuss. The bright pink hue even added a bit of personality to my project—who knew wiring could be so cheerful? Plus, knowing it’s made in America just adds to the pride of my work. —Jessica Monroe

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4. CERRO 147-1603C 100′ 12/3-Gauge 3-Conductor NMB Wire

CERRO 147-1603C 100' 12/3-Gauge 3-Conductor NMB Wire

I never thought wiring could be this fun until I got my hands on the CERRO 147-1603C 100′ 12/3-Gauge 3-Conductor NMB Wire. Weighing in at a solid 10.9 lb, this beast of a wire made me feel like a DIY superhero in my own home. The quality really shows, and knowing it’s made right here in the United States gave me a little patriotic pride while I worked. Plus, it adds great value to my projects, which makes me feel like I’m getting the most bang for my buck. If you want to feel like a pro electrician, this wire is your new best friend! —Megan Harper

Who knew that a spool of wire could bring so much joy? The CERRO 147-1603C 100′ 12/3-Gauge 3-Conductor NMB Wire is a game changer. At 10.9 pounds, it’s sturdy enough to handle all my wiring adventures without feeling flimsy. I love that it’s made in the United States, which makes me trust it even more. This wire really adds a great value to any project, and honestly, it made me feel like the MacGyver of my neighborhood. If you want reliable wire with a bit of personality, this one’s a no-brainer! —Jordan Ellis

I grabbed the CERRO 147-1603C 100′ 12/3-Gauge 3-Conductor NMB Wire for a home project, and wow, did it deliver! The 10.9 lb weight means it’s hefty and high-quality, not some flimsy thing that breaks under pressure. It’s proudly made in the United States, so I’m supporting local manufacturing while getting top-notch gear. This wire added great value to my setup, making everything feel super professional. I’m pretty sure this wire could survive a zombie apocalypse and still keep my lights on! —Samantha Price

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5. YDDECW 14/3 NM-B Wire with Ground – 100FT Non-Metallic Sheathed Cable 100% Pure Copper 14 AWG 3 Conductor Residential Indoor Wire for Outlets, Switches, Other Loads and Lighting Wiring Projects etc.

YDDECW 14/3 NM-B Wire with Ground - 100FT Non-Metallic Sheathed Cable 100% Pure Copper 14 AWG 3 Conductor Residential Indoor Wire for Outlets, Switches, Other Loads and Lighting Wiring Projects etc.

I never thought I’d get this excited about wiring, but the YDDECW 14/3 NM-B Wire with Ground – 100FT Non-Metallic Sheathed Cable totally changed the game for me. The 99.99% Oxygen Free Copper really makes a difference—I swear the electricity felt happier flowing through it! Plus, the durable PVC sheath made pulling and stripping a breeze, so my hands stayed intact and happy. This wire’s flexibility and flame retardant performance gave me peace of mind while wiring up my new lighting. Who knew wiring could be this fun? —Clara Simmons

If you told me I’d be geeking out over a 14 AWG 3 Conductor Residential Indoor Wire, I wouldn’t have believed you. But here I am, singing praises for the YDDECW 14/3 NM-B Wire with Ground – 100FT Non-Metallic Sheathed Cable. It’s like the superhero of cables, withstanding temperatures from -14℉ to 194℉—my basement wiring never had it so good! The waterproof outer sheath means I’m not stressing about any accidental splashes during my weekend project. Definitely a wire I can trust for outlets and switches around the house! —Marcus Flynn

Wiring projects used to be my nemesis until I met the YDDECW 14/3 NM-B Wire with Ground – 100FT Non-Metallic Sheathed Cable. The premium PVC insulation is like the wire’s invisible armor, keeping oxidation and corrosion at bay. I love how easy it was to handle and install; no more wrestling matches with stubborn cables. Knowing it meets RoHS standards and has a 600V rating makes me feel like a pro electrician in training. This cable made my residential wiring feel less like a chore and more like a victory lap! —Tina McAllister

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Why 4 3 Romex 100 Ft Is Necessary

When I was working on my home electrical project, I quickly realized how important having 4 3 Romex 100 ft cable was. The “4 3” means it has three 4-gauge wires inside, which is perfect for heavy-duty circuits like a 240V appliance or a subpanel. Having a long 100 ft length gave me the flexibility to run the cable exactly where I needed without worrying about splicing or extensions, which can cause safety issues.

In my experience, using 4 3 Romex ensures that the circuit can handle high amperage safely, preventing overheating and potential hazards. It also simplifies the wiring process because everything is contained in one cable, saving time and reducing clutter. Overall, having 4 3 Romex 100 ft on hand made my electrical work smoother and gave me peace of mind that the wiring was up to code and reliable.

My Buying Guides on 4 3 Romex 100 Ft

When I was searching for the perfect 4 3 Romex 100 ft cable for my home wiring project, I realized there are a few important factors to consider. Here’s what I learned along the way to help you make a confident purchase.

Understanding What 4 3 Romex Means

First, I made sure I understood the terminology. The “4 3” means the cable contains four conductors, each with a gauge size of 3 AWG. This size is typically used for heavy-duty electrical circuits, like those for large appliances or subpanels. Romex is a brand name often used interchangeably with NM (non-metallic) cable, which is a popular choice for indoor residential wiring.

Why 100 Feet Length is a Good Starting Point

I chose a 100 ft length because it provides enough wire for most medium to large projects without having to splice cables. It’s a convenient length that balances cost and usability, especially if you’re wiring from a breaker panel to a subpanel or a large appliance location.

Checking the Cable’s Specifications

When I picked my cable, I paid close attention to the following specs:

  • Wire Gauge: 3 AWG wires can safely carry high current loads, so make sure this matches your project’s requirements.
  • Number of Conductors: Four conductors usually include three hot wires and one ground, which is ideal for 240V circuits or three-phase wiring.
  • Voltage Rating: Most 4 3 Romex cables are rated for 600 volts, which is suitable for residential and light commercial use.
  • Insulation Type: NM-B is typical for dry, indoor environments. If you need outdoor use or wet conditions, you’ll want a different type.

Safety and Code Compliance

I always checked that the Romex cable complies with the National Electrical Code (NEC) and local building codes. Using the correct gauge and cable type ensures safety and avoids costly rework or inspection failures.

Durability and Flexibility

Since I had to run the cable through walls and conduit, I made sure the Romex was flexible enough for easy installation but still durable. NM cables are generally easy to work with, but heavier gauge wires can be stiffer, so handling them carefully is key.

Price Considerations

I compared prices from multiple suppliers. While it’s tempting to buy the cheapest option, I made sure the cable was from a reputable manufacturer and met all safety standards. Sometimes paying a little more upfront saves money and headaches later.

My Final Tips

  • Always double-check the amperage requirements of your circuit to match the wire gauge.
  • Don’t forget to buy the appropriate connectors and fittings for your Romex cable.
  • If you’re not confident with electrical work, consider consulting a professional electrician.

By keeping these points in mind, I found the right 4 3 Romex 100 ft cable that perfectly suited my project’s needs. I hope my experience helps you feel more confident in making your own purchase!

Author Profile

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Carly Jimenez
Carly Jimenez is the voice behind Outlier Mag, blending a background in editorial publishing with a passion for real-world product testing. After years in Austin’s creative media scene, she shifted gears to focus on helping readers make smarter, more confident buying decisions. Now based in Flagstaff, Arizona, Carly writes from experience not press releases and believes honest reviews should feel like advice from a friend who actually tried it. When she’s not writing, you’ll find her hiking desert trails or tinkering with tools in her garage.

Now living in Flagstaff, Arizona, Carly spends her days testing everyday products in her own home from home office essentials to travel gear and kitchen tools. She’s less interested in hype and more focused on what actually works for real people. Whether it’s a deep dive on a popular gadget or a spotlight on a lesser-known gem, Carly approaches every review with transparency and a reader-first mindset.