Southwire 20493346 Thhn Thwn 6 Awg 55A 100ft Stranded Wire

Product Description

The SOUTHWIRE 20493346 is a THHN/THWN-rated, 6 AWG stranded copper building wire designed for branch circuit wiring in commercial and residential electrical installations. The conductor is built with 19 strands of copper for flexibility during pull-through in conduit, and it carries a 55-amp rating at 600 volts. Thermoplastic insulation is covered by a nylon jacket in black, meeting the dual THHN/THWN designation for use in both dry and wet locations. This 100-foot spool is a standard unit for licensed electricians running circuits in panel feeders, subpanels, and general-purpose branch circuits.

This wire is suited for residential and light commercial electrical work where code requires conductors pulled through conduit or raceway. The THHN rating covers dry and damp locations, while the THWN rating extends suitability to wet environments. Common applications include service entrance feeders, motor branch circuits, and general wiring in EMT, rigid metal, or PVC conduit. The black jacket color is standard for use as an ungrounded hot conductor in single-phase and three-phase systems per NEC color convention.

Key Features

• Dual THHN/THWN rating for dry, damp, and wet location use
• 6 AWG stranded copper with 19-strand construction for pull-through flexibility
• 55-amp ampacity at 600-volt rating
• Nylon outer jacket with thermoplastic insulation resists abrasion, heat, oil, moisture, gasoline, and sunlight
• RoHS compliant; listed to UL 83, UL 1063 (MTW), CSA, and Federal Specification A-A-59544
• 100-foot length, single-conductor, black jacket

Compatibility

Designed for use as a general-purpose building wire in conduit or raceway systems requiring THHN or THWN-rated conductors at 600 volts and 6 AWG sizing.

Installation Notes

Installation must 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 at the panel before making any connections. Wire should be pulled through listed conduit or raceway — do not install as open wiring unless the application and local code specifically permit it. Avoid kinking or sharp bends during pull-through to preserve strand integrity and insulation.