UL 1283 PVC Wire 4 AWG — Three Conductor Constructions, 105°C Maximum, 600 Vac Internal Wiring
UL 1283 in 4 AWG offers a heavier cross-section than the 6 AWG size with the same 105°C maximum / 600 Vac rating and the same choice of three conductor constructions: solid, standard stranded, or braided consisting of 40–20 AWG fine strands. At 4 AWG, the braided option delivers a level of flexibility rarely found at this conductor size in a PVC-insulated UL-recognised component, making it suitable for internal wiring routes that require a tight radius or where the wire bundle is moved during servicing. CableApex supplies all three constructions as a UL Recognized Component — file on record.
Conductor Construction Comparison at 4 AWG
| Construction | Strand Description | Flexibility | Typical Use |
|---|---|---|---|
| Solid | Single conductor | Low — fixed runs | Straight panel-to-terminal connections |
| Stranded | Conventional concentric stranding | Moderate | General routed internal wiring |
| Braided | 40–20 AWG fine strands | High — tight radii | Tight routing, serviceable connections |
UL 1283 4 AWG Specifications
| Item | Specification |
|---|---|
| UL Style | 1283 — single conductor with extruded insulation |
| Temperature Rating | 105°C maximum |
| Voltage Rating | 600 Vac; optional tag: 2500 V peak — for electronic use only |
| Conductor | 4 AWG, solid or stranded, or braided (40–20 AWG strands); style range 8–2 AWG |
| Insulation | Extruded PVC, 60 mils minimum average thickness, 54 mils minimum at any point |
| Flame Rating | Horizontal flame; VW-1 vertical flame test available |
| Oil Rating | Optional — 60°C or 80°C oil resistant |
| UL Recognition | UL Recognized Component — file on record |
| Marking | Per UL Subject 758 marking requirements |
| Permitted Use | Internal wiring; tags may indicate 2500 V peak — for electronic use only |
| RoHS / REACH | Documentation available on request |
Applications
Within its permitted use — internal wiring with optional 2500 V peak electronic tag — UL 1283 4 AWG suits heavy internal power conductors and bus connections inside equipment enclosures where 105°C temperature exposure and 600 Vac insulation are both required. The braided construction at 4 AWG is particularly suited to wiring runs that must bend around structural members or be disconnected and reconnected during maintenance cycles. Equipment-type-specific applications such as machine tools or control cabinets fall outside the explicit permitted use; confirm application suitability before specifying for those installations. Specify the oil rating and 2500 V peak tag option at time of order if required.
Key Features
- Braided conductor (40–20 AWG strands) for exceptional flexibility at 4 AWG
- Single 60 mils average PVC wall specification across the full 8–2 AWG range
- Optional 2500 V peak electronic use tag available
- 105°C maximum; optional 60°C / 80°C oil resistant
- Horizontal flame; VW-1 vertical flame test available
- UL Recognized Component — file on record
Request a Quote
CableApex supplies UL 1283 4 AWG from 100 m per color in solid, stranded or braided construction and responds to B2B inquiries within 12 hours. Include conductor construction preference, 2500 V peak tag requirement and oil rating if applicable in your inquiry below.
Related UL styles: UL 1283 6 AWG PVC Wire · UL 1056 PVC Wire (refrigerating equipment) · UL 1032 PVC Wire (1000 Vac / 1200 Vdc)
