UL 1571 Hook-Up Wire 28 AWG — Extruded SR-PVC, 80°C Maximum, 30 Vac, Class 2
UL 1571 in 28 AWG with extruded SRPVC (silicone-rubber-modified PVC) insulation is a single-conductor AWM wire rated 80°C maximum at 30 Vac, for internal wiring of Class 2 circuits in electronic equipment. CableApex supplies the SRPVC variant where improved flexibility and dimensional stability under thermal cycling are required alongside the standard 30 Vac Class 2 recognition.
UL 1571 28 AWG SR-PVC Specifications
| Item | Specification |
|---|---|
| UL Style | 1571 — single conductor with extruded insulation |
| Temperature Rating | 80°C maximum |
| Voltage Rating | 30 Vac |
| Conductor | 28 AWG, solid or stranded (style minimum: 50 AWG) |
| Insulation (this page) | Extruded SRPVC (silicone-rubber-modified PVC), 2 mils minimum thickness at any point, 100 mils maximum |
| Flame Rating | Horizontal flame |
| Optional Covering | Extruded PVC, Nylon, ETFE, Polyester, XLPVC, XL Nylon, XLETFE or XL Polyester (2 mils min at any point), or lacquered braid |
| Optional Shield / Jacket | Shield optional; jacket optional (same materials as covering); additional outer shield and covering optional |
| UL Recognition | UL Recognized Component — file on record |
| Marking | Per UL Subject 758 marking requirements |
| Permitted Use | Internal wiring of Class 2 circuits in electronic equipment |
| RoHS / REACH | Documentation available on request |
PVC vs. SR-PVC: Choosing the Right UL 1571 Insulation
| Property | PVC | SRPVC (this page) |
|---|---|---|
| UL Rating | 80°C / 30 Vac | 80°C / 30 Vac |
| Flexibility | Standard | Improved — SR modifier reduces stiffness |
| Thermal cycling stability | Good | Enhanced dimensional stability |
| Typical use | General Class 2 signal wiring | Fine-pitch harnesses, instruments with thermal cycling |
Applications
Within its permitted use — internal wiring of Class 2 circuits in electronic equipment — UL 1571 28 AWG SRPVC suits fine-pitch signal harnesses, sensor leads and internal control wiring in equipment that experiences repeated thermal cycling or requires greater flexibility than standard PVC provides at 28 AWG. For applications outside Class 2 internal electronic wiring, confirm application suitability before specifying.
Key Features
- SRPVC insulation: improved flexibility over standard PVC at 28 AWG
- 30 Vac Class 2 rating; 80°C maximum temperature
- Eight insulation material variants available within Style 1571
- Fine-gauge capability from 50 AWG minimum
- Horizontal flame rated; optional shield, jacket and covering
- UL Recognized Component — file on record
Request a Quote
CableApex supplies UL 1571 28 AWG SRPVC from 100 m per color and responds to B2B inquiries within 12 hours. Submit your target quantity, conductor construction (solid or stranded) and colors through the form below.
Related UL styles: UL 1571 PVC variant · UL 1007 Wire (300 Vac) · UL 1032 Wire (1000 Vac)
