Thhncu-generic thhn12strgry500r Thhn 12 Awg Gray Wire 500ft

Product Description

The THHNCU-GENERIC thhn12strgry500r is a 12 AWG stranded copper THHN building wire supplied on a 500-foot spool in gray insulation. It carries a 600-volt rating and a 90 degrees C dry / 75 degrees C wet temperature rating, making it suitable for branch circuit wiring in conduit across a wide range of commercial and residential applications. The 19-strand copper conductor provides flexibility during pull-through compared to solid wire. PVC insulation with a nylon jacket meets the THHN designation. Licensed electricians install this wire as part of standard branch circuit and feeder runs.

This wire is used in residential and commercial electrical installations where THHN-rated conductors are required in conduit or cable trays. The gray insulation color is commonly used for neutral conductors in multi-wire branch circuits or for phase identification in larger multi-phase systems, depending on the installation's wiring scheme and local code requirements. The 500-foot spool length suits full-job pulls or stocking purposes for electrical contractors and maintenance electricians.

Key Features

• 12 AWG stranded copper conductor with 19-strand configuration for pull flexibility
• Rated 600 volts for standard branch circuit and feeder wiring
• Temperature rated 90 degrees C dry and 75 degrees C wet
• 20-amp current capacity at 60, 75, and 90 degrees C
• PVC insulation with THHN designation
• Gray insulation for phase or neutral identification per installation wiring scheme
• 500-foot spool for high-volume pulls or contractor stock

Compatibility

Designed for use in conduit or cable tray installations requiring THHN-rated 12 AWG building wire in residential, commercial, and light industrial electrical systems.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. De-energize and lock out the circuit before making any terminations. Pull this wire through conduit using appropriate wire-pulling lubricant to avoid insulation damage. Verify conductor ampacity, conduit fill, and derating requirements per NEC tables before installation.

Technical Specifications

• Conductor Material: Copper
• Conductor Size: 12 AWG
• Stranding: 19 Strand
• Current Rating: 20 amps (60/75/90 degrees C)
• Voltage Rating: 600 volts
• Temperature Rating: 90 degrees C (dry), 75 degrees C (wet)
• Insulation Material: PVC
• Wire Type: THHN
• Insulation Color: Gray
• Spool Length: 500 feet

Standard Information

• Brand: THHNCU-GENERIC
• Manufacturer Part Number: thhn12strgry500r