UL AWM 1571 PVC Hook-Up Wire 22 AWG — Class 2 Internal Wiring, 80°C Maximum, 30 Vac
UL AWM 1571 in 22 AWG with extruded PVC insulation is a single-conductor hook-up wire rated 80°C maximum at 30 Vac, recognised for internal wiring of Class 2 circuits in electronic equipment. At 22 AWG, this is the heaviest gauge available within Style 1571, offering the largest conductor cross-section in the style while retaining the same thin 2 mils minimum PVC wall that defines the range from 50 AWG up to 22 AWG. CableApex supplies UL AWM 1571 22 AWG as a UL Recognized Component — file on record.
Why Choose the Heaviest Gauge in a Thin-Wall Style
Style 1571 was designed around a single defining constraint: a PVC wall of only 2 mils minimum at any point, regardless of conductor size. That constraint keeps every size in the range slim relative to conventional PVC hook-up wire, but it also means the maximum available conductor cross-section is capped at 22 AWG — the style simply does not extend further into heavier gauges. For a Class 2 circuit that needs more current-carrying capacity than 24 or 26 AWG can comfortably provide, but still needs to stay within a UL-recognised thin-wall PVC construction, 22 AWG is the practical ceiling. Reaching for a heavier-wall style such as UL 1032 would solve the current question but add both insulation bulk and a component that is rated well beyond the 30 Vac Class 2 envelope this application actually requires.
Where 22 AWG Sits in the Style 1571 Range
Compared with the finer sizes in the same style — 30 AWG for micro-sensor interconnects, 28 AWG in the SR-PVC variant for flexible harnesses, 26 AWG for general Class 2 signal wiring, and 24 AWG as the de facto signal-wire standard — 22 AWG is the size specifiers turn to when the circuit load is closer to the upper end of what a Class 2 source can deliver. It remains fully interchangeable with the other Style 1571 sizes in terms of UL recognition, insulation material options, and optional covering, shield and jacket constructions, so a single bill of materials can mix 22 AWG for power-carrying leads with a finer gauge for adjacent signal leads without introducing a second UL style into the design.
UL AWM 1571 22 AWG Specifications
| Item | Specification |
|---|---|
| UL Style | 1571 — single conductor with extruded insulation |
| Temperature Rating | 80°C maximum |
| Voltage Rating | 30 Vac |
| Conductor | 22 AWG, solid or stranded (style range: 50 AWG minimum to 22 AWG maximum) |
| Insulation (this page) | Extruded PVC, 2 mils minimum thickness at any point, 100 mils maximum |
| Available Insulation Materials | PVC, SRPVC, foamed PVC, foamed SRPVC, XLPVC, XLSRPVC, foamed XLPVC, foamed XLSRPVC |
| Flame Rating | Horizontal flame; VW-1 vertical flame test available |
| Optional Covering | PVC, Nylon, ETFE, Polyester, XLPVC, XL Nylon, XLETFE or XL Polyester (2 mils min), or lacquered braid |
| Optional Shield / Jacket | Shield optional; jacket optional (same 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 |
Choosing an Insulation Variant for 22 AWG
All eight insulation materials available under Style 1571 are offered at 22 AWG. Standard PVC is the default and most cost-effective choice for general Class 2 wiring. SRPVC (silicone-rubber-modified PVC) improves flexibility and dimensional stability where the wire experiences repeated thermal cycling or must remain pliable in cold storage or transport. The foamed variants — foamed PVC and foamed SRPVC — reduce weight and capacitance, which matters in dense harnesses where many 22 AWG conductors run in parallel. The cross-linked variants (XLPVC, XLSRPVC, foamed XLPVC, foamed XLSRPVC) add improved heat and solvent resistance within the 80°C envelope, useful where the wire may contact cleaning solvents or lubricants during equipment servicing.
Applications
Within its permitted use — internal wiring of Class 2 circuits in electronic equipment — UL AWM 1571 22 AWG PVC suits general hook-up wiring, control panel connections, switch and indicator leads, and internal power feeds to sub-modules across consumer electronics, small appliances, instrumentation and lighting control equipment. Because it is the largest cross-section available in the style, it is also the size most commonly specified as a default when a bill of materials calls for “UL 1571 hook-up wire” without further qualification, and later refined to a finer gauge only where space constraints require it. For applications outside Class 2 internal electronic wiring, confirm application suitability before specifying.
Key Features
- Heaviest conductor size available within Style 1571
- Thin 2 mils minimum PVC wall keeps overall wire diameter compact
- Eight insulation material variants including foamed and cross-linked PVC
- Fully interchangeable UL recognition with finer Style 1571 sizes
- Horizontal flame; VW-1 vertical flame test available
- UL Recognized Component — file on record
Request a Quote
CableApex supplies UL AWM 1571 22 AWG PVC from 100 m per color and responds to B2B inquiries within 12 hours. Specify conductor construction (solid or stranded), insulation material variant, colors and any optional constructions through the form below.
Full UL 1571 range: 30 AWG · 28 AWG SR-PVC · 26 AWG PVC · 24 AWG Signal Wire
