Thhncu-generic tffn18strblu500r Tffn 18 Awg Wire 500ft

Product Description

The THHNCU-GENERIC tffn18strblu500r is a TFFN-rated, 18 AWG stranded copper building wire supplied on a 500-foot spool in blue insulation. The conductor is fully annealed bare copper with 16-strand construction, covered in PVC insulation with a nylon jacket conforming to the TFFN designation. Rated for 600 volts and 90 degrees C in dry locations, this wire is suited for use in motor branch circuits, control panels, and lighting fixture wiring where a flexible, smaller-gauge conductor is required. Electricians and panel technicians are the primary installers.

This wire is used in residential and light commercial electrical work where TFFN or THHN-style fixture wire is specified. Common applications include internal wiring of luminaires, motor control enclosures, and low-voltage control circuits within conduit or raceway systems. The blue insulation color supports circuit identification and color-coding practices in panel and control wiring installations. The 500-foot spool length suits both shop-stocked service inventory and larger single-job pulls.

Key Features

• 18 AWG fully annealed bare copper conductor with 16-strand flexibility
• TFFN type with PVC insulation and nylon jacket
• 600-volt rating suitable for standard branch and control circuit applications
• 90 degrees C dry temperature rating
• Blue insulation for circuit identification and color-coding compliance
• 500-foot spool for efficient job-site or shop pulls

Compatibility

Designed as an OEM-style replacement and general-use TFFN fixture wire for residential and light commercial electrical installations requiring 18 AWG stranded copper wire in conduit or raceway systems.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local amendments. De-energize all circuits and verify absence of voltage before pulling or terminating wire. TFFN wire is rated for dry locations only and must be installed in conduit, raceway, or within listed luminaire assemblies as required by the NEC. Do not use in wet or damp locations or exceed the 90 degrees C dry temperature rating.

Technical Specifications

• Voltage Rating: 600 volts
• Temperature Rating: 90 degrees C (Dry)
• Conductor Size: 18 AWG
• Stranding: 16 Strand
• Conductor Material: Fully Annealed Bare Copper
• Insulation Material: PVC with Nylon Jacket
• Wire Type: TFFN
• Number of Conductors: 1
• Outer Diameter: 0.085 inches
• Spool Length: 500 feet
• Insulation Color: Blue

Standard Information

• Brand: THHNCU-GENERIC
• Manufacturer Part Number: tffn18strblu500r