SKU: 86447930491

Southwire Romex® Brand SIMpull® Copper Type NM-B Cable

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Description

Southwire Romex® Brand SIMpull® Copper Type NM-B CableNonmetallic Sheathed Cable. 600 Volt. Copper Conductor. PVC Insulation Nylon Sheath. PVC Jacket with SIMpull Technology for Easier Pulling. Construction Conductor: Bare copper per ASTM B3. Sizes #14 AWG #10 AWG are solid. Sizes #8 AWG #2 AWG are Class B compressed stranded per ASTM B8 Insulation: All phases and neutral(s) are insulated with Polyvinyl Chloride (PVC) with Nylon Sheath 2 C: Black, White 3 C: Black, Red, White 4 C: Black, Red, Blue, White

Nonmetallic-Sheathed Cable. 600 Volt. Copper Conductor. PVC Insulation/Nylon Sheath. PVC Jacket with SIMpull® Technology for Easier Pulling.

Construction

  • Conductor: Bare copper per ASTM B3. Sizes #14 AWG - #10 AWG are solid. Sizes #8 AWG - #2 AWG are Class B compressed stranded per ASTM B8
  • Insulation: All phases and neutral(s) are insulated with Polyvinyl Chloride (PVC) with Nylon Sheath 2/C: Black, White 3/C: Black, Red, White 4/C: Black, Red, Blue, White
  • Ground: Solid soft drawn bare copper with kraft paper wrap
  • Binder: Kraft paper
  • Jacket: Polyvinyl Chloride (PVC) jacket utilizing SIMpull Technology

Standards & References

  • ASTM B3 Soft or Annealed Copper Wire
  • ASTM B8 Concentric-Lay-Stranded Copper Conductors
  • UL 719 Nonmetallic-Sheathed Cables
  • RoHS-2 (European Directive 2011/65/EU)
  • Federal Specification A-A-59544
  • NOM-063-SCFI Electrical Products – Conductors – Safety Requirements

Application & Features

Southwire Romex® Brand SIMpull® Type NM-B (nonmetallic-sheathed) cable may be used for both exposed and concealed work in dry locations as specified in the National Electrical Code®. NM-B cable is primarily used in residential wiring as branch circuits for outlets, switches, and other loads. NM-B cable may be run in air voids of masonry block or tile walls where such walls are not wet or damp locations. Voltage rating for NM-B cable is 600 volts.

 

Shipping Notes
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Exchange/Return Notes
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SKU: 86447930491

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4.7 ★★★★★
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Stephanie K.
Carnegie, US
★★★★★ 5
Would recommend!
Color: White, Size: Queen
I bought this mattress topper for my teenage daughter for her bed. It was on sale when I purchased it and when it arrived I loved the quality and softness of the topper. Great buy for the price! It stays in place and fits as sized. I have yet to launder it, but I would assume it will wash up just fine. My daughter loves it and makes her bed dreamy.
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Reviewed in the United States on March 23, 2026
T
Tara Aldridge
Charlottesville, US
★★★★★ 5
Saved me so much money
Im loving this mattress topper. It has added a noticeable layer of comfort to my firm mattress without making it feel too soft. The cushion is plush yet supportive and has made sleeping more comfortable overall. The bamboo feels soft and breathable. It fits on the mattress with the deep pockets and stays in place alk night. Setup was easy and it fluffed up after unpacking. If you have a firm mattress and want extra comfort without replacing it, this topper is a great option. Highly recommend
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Reviewed in the United States on December 29, 2025
S
Sophia S.
Lowell, US
★★★★★ 5
Comfortable, cooling, and OEKO-TEX certified, it’s a great way to refresh any mattress.
This 3-inch mattress topper instantly upgraded my bed with a softer, cooler, and more supportive feel. The bamboo-viscose fabric is noticeably breathable, helping regulate heat throughout the night—great for hot sleepers. The 1200GSM down-alternative fill adds plush, cloud-like cushioning while still offering balanced support for the back and shoulders. It fits securely with the deep pockets and stays in place even when turning. After allowing it to fully expand, the topper fluffs up beautifully. Comfortable, cooling, and OEKO-TEX certified, it’s a great way to refresh any mattress.
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Reviewed in the United States on December 8, 2025
L
Leon
Houston, US
★★★★★ 5
Great upgrade for a rental apartment mattress
The mattress in my rental place is firm to the point where it almost feels unfinished. Instead of replacing it, I decided to try adding this topper. It made an immediate difference in the way the bed feels when I sit or lie down. There’s a nice cushioned layer that softens that “flat” feeling but still holds its shape. Another thing I noticed is how breathable it is. I expected thick padding to feel warm, but the airflow here feels better than the original mattress surface. Even after moving around, it never felt heavy or stuffy.
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Reviewed in the United States on November 22, 2025
A
Alexa Young
Pawtucket, US
★★★★★ 5
Soft and Comfortable Topper
I got this bamboo mattress topper for a small single bed we keep in our guest room, but I ended up testing it out myself first. The material feels soft and breathable, which is nice because that room can get a little warm in the afternoons. It adds a good amount of cushioning without making the bed too soft. After a couple of nights, my back actually felt better compared to the old mattress alone. I also appreciate that it’s machine washable, because our guest room sometimes doubles as a nap spot for my son after swim class, and spills happen. It dried pretty quickly in the dryer and kept its shape. Overall, it made the bed feel much more comfortable and fresh.
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Reviewed in the United States on November 24, 2025

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