Thhncu-generic thhn4strblumr 4 Awg Thhn Copper Wire Blue

Product Description

The THHNCU-GENERIC thhn4strblumr is a 4 AWG stranded copper THHN building wire with blue PVC insulation and a nylon jacket, available cut to length. It carries a 600-volt rating and supports current capacity of 70 amps at 60 degrees C, 85 amps at 75 degrees C, and 100 amps at 90 degrees C. The 19-strand copper conductor provides flexibility during pull-through in conduit runs. The nylon jacket adds abrasion resistance and helps the wire pull cleanly through tight conduit bends. This wire is a standard choice for branch circuit wiring in residential, commercial, and light industrial electrical installations.

THHN wire of this gauge is used in conduit installations for branch circuits, feeder runs, and service entrance applications where a 600-volt, 90 degrees C dry-rated conductor is required. The blue insulation color is commonly used by electricians to designate specific phase or circuit identification in multi-wire systems. This product is sold cut to length, making it practical for jobs that require a specific footage rather than a full reel.

Key Features

• 4 AWG copper conductor with 19-strand construction for flexibility in conduit
• THHN type rated at 600 volts and 90 degrees C dry service
• Current ratings of 70A at 60 degrees C, 85A at 75 degrees C, and 100A at 90 degrees C
• PVC insulation with nylon outer jacket for abrasion resistance and easier pulling
• Blue insulation for circuit identification in multi-wire conduit runs
• Cut-to-length availability reduces waste on specific footage requirements

Compatibility

Designed for use in conduit systems requiring THHN-rated 4 AWG copper conductors at 600 volts, suitable for dry locations in residential, commercial, and light industrial branch circuit and feeder wiring applications.

Installation Notes

THHN wire must be installed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. Always de-energize the circuit and verify with a meter before making connections. Use appropriately rated conduit, connectors, and terminations for the conductor gauge and ampacity. Do not exceed the temperature or voltage ratings stamped on the insulation.