TW / THW / THHW Wires – Versatile Building Wire for Residential, Commercial, and Industrial Use
TOT Wire & Cable offers high-quality TW, THW, and THHW wires designed for a wide range of electrical installations. These general-purpose building wires are widely used in conduit, ducts, and recognized raceways for services, feeders, and branch circuits in residential, commercial, and industrial buildings.
What are TW, THW, and THHW Wires?These wire types are constructed with a copper conductor and thermoplastic insulation, and each type is optimized for different environmental conditions:
All three wire types are rated at 600 volts, making them suitable for power distribution and branch circuit wiring.
Construction Details| Component | Description |
|---|---|
| Conductor | Solid or stranded bare copper or tinned copper |
| Insulation | PVC (Polyvinyl Chloride) |
| Jacket | Optional nylon sheath for THHW wires |
| Voltage Rating | 600V |
| Temp. Rating | TW: 60°C, THW: 75°C, THHW: 90°C (dry), 75°C (wet) |
Available Sizes
Features & Benefits
Moisture and Heat Resistant – Performs in both wet and dry conditions High Electrical Conductivity – Premium copper ensures excellent performance
Flexible Installation – Available in solid or stranded formats
Flame-Retardant PVC Insulation – Provides safety and durability
Cost-Effective – Ideal for large-scale electrical wiring projects
Common Applications
Why Choose TOT for TW / THW / THHW Wires?TOT Wire & Cable is a dependable building wire manufacturer offering high-performance THW, TW, and THHW wires for construction, utility, and OEM applications.
Request a Quote or SampleNeed high-performance TW, THW, or THHW wires for your next project? Contact TOT Wire & Cable today for pricing, datasheets, and expert assistance.