Thhncu-generic thhn250mcmstrgrymr Thhn 250 Mcm Gray Wire

Product Description

The THHNCU-GENERIC thhn250mcmstrgrymr is a 250 kcmil stranded copper THHN building wire with gray insulation, sold cut to length. THHN-rated wire is a standard choice for branch circuit and feeder wiring in conduit runs across residential, commercial, and industrial applications. The 250 kcmil conductor size handles high-ampacity loads and is commonly pulled by licensed electricians on service entrance feeders, panel feeds, and heavy-equipment circuits. The stranded construction improves flexibility during pull-through in conduit compared to solid conductors of the same gauge.

This wire is suited for use in dry and damp locations inside conduit or raceway systems. The gray insulation color is used in multi-conductor installations where color coding helps identify conductors during termination and inspection. Electricians working on large commercial panels, industrial machinery feeds, or sub-panel installations will find the cut-to-length format reduces material waste on job-specific runs.

Key Features

• 250 kcmil conductor size rated for high-ampacity feeder and branch circuit applications
• Stranded copper construction for improved flexibility during conduit installation
• Gray THHN insulation for conductor identification in multi-wire assemblies
• Cut-to-length format minimizes waste on custom-length pulls
• THHN insulation rating suitable for dry and damp locations in conduit

Compatibility

Designed as a standard THHN-rated stranded copper building wire for use in conduit or raceway systems where 250 kcmil conductors are specified.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize all circuits and verify zero voltage before terminating or connecting conductors. Use appropriate conduit fill calculations per NEC Chapter 9 to confirm raceway sizing. Do not exceed the ampacity ratings listed in NEC Table 310 for the specific installation conditions and ambient temperature.

Technical Specifications

• Conductor Size: 250 kcmil
• Conductor Material: Copper
• Wire Construction: Stranded
• Insulation Type: THHN
• Insulation Color: Gray

Standard Information

• Brand: THHNCU-GENERIC
• Manufacturer Part Number: thhn250mcmstrgrymr