Thhncu-generic thhn600mcmstrblkmr Thhn 600 Kcmil Black Wire

Product Description

The THHNCU-GENERIC thhn600mcmstrblkmr is a 600 kcmil stranded copper THHN building wire with black PVC insulation and a nylon jacket. Rated for 600 volts and up to 90 degrees C in dry locations, this wire carries up to 475 amps at its top temperature rating. The 61-strand construction provides flexibility during pull-through in conduit runs. It is sold cut to length from a 2500-foot reel, making it suitable for large commercial and industrial feeder applications. Licensed electricians and electrical contractors are the primary installers of wire in this size class.

This wire is used in commercial, industrial, and heavy residential electrical installations where large-capacity feeder or service-entrance conductors are required. Common applications include main distribution panels, motor feeders, switchgear connections, and large branch circuits. The black insulation color follows standard phase-identification practice in multi-conductor conduit runs. With an outer diameter of 1024 mil, conduit fill calculations must be completed per NEC Table 1 and Chapter 9 before installation.

Key Features

• 600 kcmil stranded copper conductor with 61 strands for improved pull flexibility
• Ampacity ratings: 350 amps at 60 degrees C, 420 amps at 75 degrees C, 475 amps at 90 degrees C
• PVC insulation with nylon jacket rated THHN, 600 volt, 90 degrees C dry
• Black insulation color for phase identification in conduit wiring systems
• Cut-to-length ordering from a 2500-foot reel to reduce material waste on large jobs
• Outer diameter of 1024 mil supports accurate conduit fill planning

Compatibility

Designed as a standard THHN-rated stranded copper building wire suitable for use in conduit systems on commercial, industrial, and large residential electrical installations per NEC requirements.

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 connections. Wire in this size class requires appropriate wire-pulling lubricant and mechanical or hydraulic compression lugs rated for 600 kcmil copper conductors. Conduit fill must be verified per NEC Chapter 9 before pulling to avoid insulation damage.

Technical Specifications

• Conductor Material: Copper
• Conductor Size: 600 kcmil
• Stranding: 61 Strand
• Ampacity: 350 amps (60 degrees C), 420 amps (75 degrees C), 475 amps (90 degrees C)
• Voltage Rating: 600 volts
• Temperature Rating: 90 degrees C dry
• Insulation Material: PVC, Thermoplastic
• Jacket Material: Nylon
• Insulation Color: Black
• Wire Type: THHN
• Outer Diameter: 1024 mil
• Weight: 1987 pounds per 1000 feet
• Reel Length: 2500 feet

Standard Information

• Brand: THHNCU-GENERIC
• Manufacturer Part Number: thhn600mcmstrblkmr