Product Overview
High-Performance Fixture Wiring for Demanding Electrical Applications
UL66-certified TFFN and TFN fixture wires deliver reliable 600V power distribution in lighting systems, machinery, and appliances. Featuring annealed copper conductors with PVC insulation and optional nylon sheathing, these 16AWG/18AWG cables provide exceptional flexibility, oil resistance, and thermal stability for NEC-compliant installations in dry/wet locations.
Product Advantages
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Nylon Protection: 0.1mm sheath provides 3× greater abrasion resistance than standard PVC wiring
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Versatile Stranding: 1/7/16/26 strand options balance flexibility and cost efficiency
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Dual Certification: Single cable qualifies as TFFN (fixture wiring) + MTW (machine tool wiring)
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Space Optimization: Ultra-compact 1.99mm diameter for restricted fixture spaces
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Chemical Resilience: Withstands gasoline, oil, and coolants in industrial environments
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Temperature Adaptability: 60°C wet/90°C dry ratings with 105°C AWM options
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Compliance Ready: UL66, UL758 & NEC certified for hassle-free installations
Key Applications
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Fixture Wiring: NEC-compliant lighting systems and signage
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Machine Tools (MTW): Control panels, CNC equipment, and automation systems
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Appliance Wiring (AWM): Internal wiring for dry locations (105°C rated)
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Fire Alarm Systems: TFN for fire protective signaling circuits
Technical Specifications (UL66 Compliant)
| Size (AWG) | Strand Count | PVC Insul. (mm) | Nylon Sheath (mm) | O.D. (mm) | Weight (kg/km) | Ampacity (A) |
|---|---|---|---|---|---|---|
| 18 | 16 | 0.38 | 0.10 | 2.24 | 12 | 6 |
| 18 | 1 | 0.38 | 0.10 | 1.99 | 12 | 6 |
| 18 | 7 | 0.38 | 0.10 | 2.00 | 12 | 6 |
| 16 | 26 | 0.38 | 0.10 | 2.57 | 16 | 8 |
| 16 | 1 | 0.38 | 0.10 | 2.26 | 16 | 8 |
| 16 | 7 | 0.38 | 0.10 | 2.39 | 16 | 8 |
Temperature & Environmental Ratings
| Type | Location | Temp. Rating | Special Conditions |
|---|---|---|---|
| TFFN | Dry | 90°C | Standard fixture wiring |
| MTW | Wet | 60°C | Oil/coolant exposure |
| MTW | Dry | 90°C | Ampacity limited to 75°C rating |
| AWM | Dry | 105°C | Appliance wiring only |
| TEWN | Wet/Dry | 105°C | Alternative for harsh conditions |
Cable Construction
| Layer | Specification | Key Benefit |
|---|---|---|
| Conductor | Annealed flexible copper (Class I/II) | Superior conductivity & flexibility |
| Insulation | High-heat PVC (0.38mm thickness) | Maintains integrity at 105°C |
| Outer Sheath | Nylon (0.1mm, TFFN only) | Abrasion/oil resistance |
Engineering Selection Guide
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Current Requirements:
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18AWG: 6A max (all configurations)
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16AWG: 8A max (all configurations)
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Flexibility Needs:
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High strand counts (26-strand) for dynamic bending
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Solid core (1-strand) for static installations
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Environmental Factors:
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TFFN: Nylon sheath for abrasion-prone areas
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TFN: Cost-effective for dry, protected spaces
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Space Constraints: 1-strand for minimal diameter (1.99mm @18AWG)
Compliance & Certifications
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UL 66: Fixture Wire Standard
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UL 758: Appliance Wiring Material
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NEC Article 402: Fixture Wire Requirements
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RoHS 3: Environmental Compliance
Installation Specifications
| Parameter | Requirement |
|---|---|
| Voltage Rating | 600V AC/DC |
| Bending Radius | 4× cable diameter minimum |
| Pull Strength | 35N max for 18AWG (1-strand) |
| Termination | CU-rated connectors required |