Thhncu-generic thhn350mcmstryelmr Thhn 350 Kcmil Copper Wire

Product Description

The THHNCU-GENERIC thhn350mcmstryelmr is a 350 kcmil stranded copper THHN building wire with yellow PVC insulation and a nylon jacket, rated for 600 volts. Designed for use in conduit runs, this wire carries a 90 degrees C dry temperature rating and is suitable for branch circuit, feeder, and service entrance wiring in commercial and industrial applications. The 37-strand configuration provides flexibility during installation in tight conduit bends and junction boxes. Licensed electricians pull this wire for high-ampacity branch and feeder circuits where code-compliant conductor sizing is critical. This is a cut-to-length product, making it practical for job-specific footage requirements.

This wire is suited for use in dry locations inside conduit or raceways in residential, commercial, and industrial electrical systems. Typical applications include panel feeder runs, motor circuit wiring, and large branch circuits that require a high-ampacity conductor. The yellow insulation color aids in phase or circuit identification during installation and inspection. At 350 kcmil, this conductor is commonly specified for high-load feeder circuits where current demands reach or exceed several hundred amps.

Key Features

• 350 kcmil conductor size delivers ampacity ratings of 260 amps at 60 degrees C, 310 amps at 75 degrees C, and 350 amps at 90 degrees C
• 37-strand copper construction provides flexibility for pulling through conduit
• PVC thermoplastic insulation with nylon jacket rated THHN for dry locations up to 90 degrees C
• 600-volt rating suitable for standard building wiring applications
• Yellow insulation color for circuit identification
• Cut-to-length format minimizes waste on job-specific runs

Compatibility

Designed for use in conduit or raceway systems requiring a 350 kcmil THHN-rated copper conductor at 600 volts in dry locations per NEC installation requirements.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize and lock out the circuit before making any connections. Use appropriately rated lugs, terminals, and conduit fill calculations for 350 kcmil conductors. Do not exceed the temperature or voltage ratings of this wire in any installation.

Technical Specifications

• Conductor Size: 350 kcmil
• Ampacity: 260 amps at 60 degrees C, 310 amps at 75 degrees C, 350 amps at 90 degrees C
• Voltage Rating: 600 volts
• Stranding: 37 strand
• Temperature Rating: 90 degrees C (dry)
• Conductor Material: Copper
• Insulation Material: PVC thermoplastic
• Jacket Material: Nylon
• Insulation Color: Yellow
• Outer Diameter: 0.797 inches
• Weight: 1174 pounds per 1000 feet
• Wire Type: THHN

Standard Information

• Brand: THHNCU-GENERIC
• Manufacturer Part Number: thhn350mcmstryelmr