12/3 NM-B wire is a versatile and reliable electrical cable designed for various residential and commercial applications. It features a 250-foot length and is characterized by its 347-mil outer diameter, providing robust protection and durability. The wire is constructed with soft-annealed copper conductors, ensuring excellent electrical conductivity and flexibility.
This cable is approved under UL 83/719 standards, guaranteeing its compliance with rigorous safety and performance criteria. It is rated for 600 volts, making it suitable for a wide range of electrical systems. The 20-amp current rating ensures it can handle substantial electrical loads, while the 90°C temperature rating allows it to operate safely in high-temperature environments.
Weighing 107 pounds per 1000 feet, this wire is designed to be both durable and manageable. The PVC insulation material provides effective protection against moisture and abrasion, enhancing the cable's longevity and reliability. With three conductors, the 12/3 NM-B wire is ideal for use in various wiring configurations, including general-purpose and branch circuit installations.
Application
12/3 NM-B wire is a versatile and widely used electrical cable, designed to meet the requirements outlined in Article 334 of the National Electrical Code (NEC). This Type NM-B (Non-Metallic Sheathed) cable is commonly utilized for residential wiring applications, including the installation of luminaires, devices, and appliances.
Feature
Copper building wire
PVC Insulation
600-volt applications
Suitable for dry locations
UL Listed E-123775
Certification
The NM-B cable has achieved UL certification, affirming its compliance with stringent safety and performance standards. UL (Underwriters Laboratories) certification ensures that the NM-B cable meets the rigorous requirements for electrical safety, as outlined in UL 83 and UL 719 standards.
Package
Factory
Dongguan Greater Wire & Cable Co., Ltd. is a leading manufacturer located in Dongguan City, Guangdong Province, China. The company excels in the integration of research and development, production, sales, and after-sales support. Specializing in a diverse range of wire and cable products, Dongguan Greater Wire & Cable Co., Ltd. caters to various sectors including airports, hospitals, industrial facilities, and educational institutions globally. The company's commitment to quality and innovation is reflected in its state-of-the-art production facilities and comprehensive testing systems, which ensure the highest standards of product excellence.
Case
Partner
FAQ
Q: How many amps will 12/3 wire carry?
Q: What is the difference between Romex UF-B and NM-B?
NM-B (Non-Metallic Sheathed Cable):
Insulation: NM-B cables are typically insulated with PVC (Polyvinyl Chloride) and have a non-metallic sheath. The conductors inside NM-B cables are often made of soft-annealed copper.
Application: NM-B cables are designed for indoor use and are suitable for dry locations. They are commonly used for residential wiring, including for lighting, outlets, and other general-purpose circuits.
UF-B (Underground Feeder Cable):
Insulation: UF-B cables are constructed with a thicker, more rugged PVC insulation and have a solid outer jacket. This makes them more resistant to moisture, abrasion, and environmental damage compared to NM-B cables.
Application: UF-B cables are designed for direct burial in the ground and are used for outdoor installations where the cable may be exposed to moisture or other environmental conditions. They are suitable for applications such as powering outdoor lights, landscape lighting, and other outdoor circuits.
Q: Is NMB the same as Romex?
A: Yes, they are same.
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| CONDUCTOR | INSULATION THICKNESS (MILS) |
GROUND WIRE | APPROX. CABLE DIMENSION (MILS) |
APPROX. NET WT. PER 1000' (LBS.) |
ALLOWABLE AMPACITY + |
|||
|
SIZE (AWG PACKAGE 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 | 2/2 | 1* | 19 | 14 | 1 | 336 | 91 | 15 |
| 14 | 4 | 1** | 19 | 14 | 1 | 336 | 91 | 15 |
| 12 | 2/2 | 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 |
