Thhncu-generic tffn18strred500r Tffn 18 Awg Wire 500 Ft

Product Description

The THHNCU-GENERIC tffn18strred500r is a TFFN-type, 18 AWG stranded copper wire rated for 600 volts and 90 degrees C in dry environments. The conductor is fully annealed bare copper with a 16-strand configuration, insulated with PVC and jacketed with nylon per the TFFN designation. Supplied on a 500-foot spool in red, this wire is used where color-coded low-voltage or control wiring is required in commercial and light industrial electrical installations. Licensed electricians and controls technicians are the primary installers.

TFFN wire is commonly used for fixture wiring, control panel wiring, and machine tool applications where a flexible, heat-resistant wire with a thin-wall nylon jacket is needed. The 18 AWG size suits low-current control circuits, lighting fixture leads, and similar applications. The red insulation supports color-coded wiring schemes in multi-conductor control installations. The 500-foot spool length is practical for larger jobs or stocking in a service vehicle or shop.

Key Features

• 18 AWG fully annealed bare copper conductor with 16-strand configuration for flexibility
• TFFN type with PVC insulation and nylon jacket rated to 90 degrees C dry
• 600-volt rating suitable for control and fixture wiring circuits
• Red insulation for color-coded wiring identification
• 500-foot spool for efficient use on larger installations or stocking purposes
• Outer diameter of 85 mil for use in conduit fill calculations

Compatibility

Designed as a standard TFFN 18 AWG replacement or new-install wire suitable for fixture wiring and control circuit applications in dry environments where 600-volt, 90-degree-C-rated stranded copper wire is 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 the circuit and verify zero voltage with a meter before making any connections. TFFN is rated for dry locations only and must not be used in wet or damp environments. Verify conduit fill calculations using the 85-mil outer diameter when routing through conduit with other conductors.

Technical Specifications

• Conductor Material: Fully Annealed Bare Copper
• Conductor Size: 18 AWG
• Stranding: 16 Strand
• Insulation Material: PVC with Nylon Jacket
• Wire Type: TFFN
• Voltage Rating: 600 volts
• Temperature Rating: 90 degrees C (Dry)
• Outer Diameter: 85 mil
• Spool Length: 500 feet
• Color: Red
• Number of Conductors: 1

Standard Information

• Brand: THHNCU-GENERIC
• Manufacturer Part Number: tffn18strred500r