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NM-B Wire with Ground
Conductor ：
Pure Copper
Insulation：
PVC
Jacket：
Nylon
Sheath：
Flame-Retardant Paper
Outer Jacket：
PVC
Rated Voltage：
600V
Standard：
UL83,UL719,CUL
Description
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Conductor
Copper Conductor
Insulation and Sheath
PVC Insulation & Nylon Sheath
No. of Conductor
3 cores & 4 cores
Temperature Rating
90°C
NM-B wire
NM-B is a non-metallic sheathed copper conductor cable designed for fixed and concealed installation in indoor wiring systems. It is a standard cable for residential and light commercial applications, primarily used for branch circuits in household electrical systems.
NM - b wire
NM-B is a non-metallic sheathed cable used for fixed wiring inside buildings and is widely used in residential and light commercial construction in North America.
Copper Conductors
Rated Voltage Uo/U (Um) : 600V
PVC Insulated & Nylon Jacket
Standards
UL83,UL719,CUL
PVC Outer Jacket
Temperature range
90℃
Advantages of nm-b wire
NM-B cables have a simple structure, are lightweight, and highly flexible, making them easy to cut, bend, and install, significantly improving installation efficiency. Their special low-friction sheath design effectively reduces resistance during conduit installation and wire pulling, lowering labor costs. Furthermore, NM-B cables comply with multiple industry standards such as UL, NEC, and ASTM, offering high safety and strong compatibility, making them a mature and reliable standardized solution for residential electrical systems.
| CONDUCTOR | Insulation Thickness (MILS) |
GROUND WIRE | Approx. Cable Dimension (MILS) |
Approx. Net Wt. Per 1000' (LBS.) |
Allowable Ampacity + | |||
| SIZE (AWG or KCMIL) |
No. Of Conductors | No. Of Strands | Size (AWG) |
No. Of Strands |
||||
| TWO CONDUCTOR | ||||||||
| 14 | 2 | 1 | 19 | 14 | 1 | 368X162 | 57 | 15 |
| 12 | 2 | 1 | 19 | 12 | 1 | 418X179 | 82 | 20 |
| 10 | 2 | 1 | 24 | 10 | 1 | 494X210 | 124 | 30 |
| 8 | 2 | 7 | 35 | 10 | 1 | 618X272 | 186 | 40 |
| 6 | 2 | 7 | 35 | 10 | 1 | 658X308 | 252 | 55 |
| THREE CONDUCTOR | ||||||||
| 14 | 3 | 1 | 19 | 14 | 1 | 462X176 | 78 | 15 |
| 12 | 3 | 1 | 19 | 12 | 1 | 524X190 | 112 | 20 |
| 10 | 3 | 1 | 24 | 10 | 1 | 630X220 | 166 | 30 |
| 8 | 3 | 7 | 35 | 10 | 1 | 572 | 255 | 40 |
| 6 | 3 | 7 | 35 | 10 | 1 | 659 | 360 | 55 |
| 4 | 3 | 7 | 46 | 8 | 1 | 825 | 565 | 70 |
| 2 | 3 | 7 | 46 | 8 | 1 | 870 | 818 | 95 |
| FOUR CONDUCTOR | ||||||||
| 14 | 4 | 1 | 19 | 14 | 1 | 336 | 91 | 15 |
| 14 | 4 | 1 | 19 | 14 | 1 | 336 | 91 | 15 |
| 12 | 4 | 1 | 19 | 12 | 1 | 381 | 132 | 20 |
| 12 | 4 | 1 | 19 | 12 | 1 | 381 | 132 | 20 |
| 10 | 4 | 1 | 24 | 10 | 1 | 465 | 201 | 30 |
Certification
NM-B cables are certified to UL 83, UL 719, and cUL standards, complying with North American market regulations and standards regarding material performance, electrical safety, and structural design. The insulation material of the internal conductors in NM-B cables meets the requirements for long-term indoor use in terms of heat resistance, electrical strength, and mechanical properties.
Heat resistance
Current carrying capacity
Electrical performance
UL83,UL719,CUL Certified
APPLICATIONS
NM-B cable is primarily used in dry indoor areas of residential and light commercial buildings for fixed wiring applications such as branch circuits from distribution panels to outlets, lighting circuits, and switch circuits.
Residential Branch Circuits
The most common application of NM-B wire is in branch circuit wiring in North American residential buildings. It is widely used to provide power to outlets, lighting fixtures, and small appliances.
Lighting Systems
NM-B wire is widely used in indoor lighting systems, including ceiling lights, downlights, wall lights, and pendant light wiring. Its flexibility and small bending radius make it easy to route between beams and studs.
Wall Outlets
In residential and light commercial buildings, it is commonly used for connecting wall outlets and switch circuits. Whether for standard 120V outlets or power points in functional areas such as kitchens, NM-B cable provides reliable electrical performance.
Household Appliances
NM-B wire is suitable for providing dedicated circuits for household appliances such as washing machines, dryers, dishwashers, and microwaves. Different specifications of NM-B wire can be selected to meet different current carrying capacity requirements.
Customer Photos
Exporting to 80+ countries and regions, we bring proven global export experience and trusted wires & cables to customers worldwide.
plant equipment
Geritel Wire is a professional UL wire manufacturer. Greater Wire provides customized wire and cable services to meet the diverse needs of our customers. Whether it's voltage rating, conductor specifications, insulation materials, length, or color, we can manufacture according to customer requirements.
Packaging Information
NM-B electrical wires are packaged in three ways: coiled, on a plastic reel, or on a tin-plated steel reel. The specific packaging method will depend on the actual size and specifications.
Rolled Packaging
Plastic Reel
Tin-Plated Steel Reel
Global Certification
Geritel Wire Manufacturer holds 50+ international certifications, including UL, cUL, SAA, TUV, CE, VDE, ISO, and others. Our cables meet the highest global quality and safety standards.
VDE
UL
SAA
TUV
ISO
What are people saying about us
Our customers have consistently shared positive feedback about our cables and services. Here’s what they say about US:
Luis Fernando Pérez - Venezuela - Office Building Project
The wires are of very good quality. The cables need to pass through long pipes and corners, and the cables are very flexible. We also ordered fire-resistant wires, which have been tested by a testing agency and found to be without problems.
Thomas Baker - USA - Factory construction
GERITEL WIRE's engineering team was very professional. They offered suggestions based on our cable requirements, and we found more suitable cable models. Subsequent operation has been stable without any problems.
Ricardo José Herrera - Dominican - Hotel Project
Due to the tight schedule of the hotel project, we had to adjust the usage quantity several times. GERITEL WIRE supplier was very flexible in terms of delivery and packaging, with fast delivery times. The wire reels were clearly labeled, making on-site counting and distribution very convenient.
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