UL 1330 FEP Hook-Up Wire 22 AWG — Fine-Gauge End of a 30 AWG to 4/0 AWG Style, 200°C at 600 Vac
UL 1330 in 22 AWG is a single-conductor appliance wiring material with extruded FEP insulation, rated 200°C maximum at 600 Vac. At 22 AWG it sits toward the fine end of one of the widest conductor spans of any fluoropolymer appliance wiring style: 30 AWG through 4/0 AWG, covering signal-level conductors and heavy power conductors under a single UL style number and a single set of ratings. CableApex supplies UL 1330 22 AWG as a UL Recognized Component — file on record.
One Style Across Signal and Power Gauges
A conductor span from 30 AWG to 4/0 AWG is unusual. Most appliance wiring styles are scoped either to fine hook-up gauges or to heavier power conductors, which means a design mixing both ends normally has to reference two separate UL styles, verify two sets of ratings and manage two component approvals. UL 1330 removes that split: the 200°C maximum, the 600 Vac rating, the horizontal flame rating and the gasoline and oil tag options apply identically at 22 AWG and at 4/0 AWG. For an appliance where sensor and control leads share a hot compartment with element or motor feeds, the entire high-temperature portion of the harness can be built on one style, with the specification differing only by gauge and by which of the three insulation brackets applies.
Conductor Span and Wall Brackets
| Bracket | Min average / min at any point | Typical role in an appliance harness |
|---|---|---|
| 30–10 AWG (22 AWG on this page) | 20 mils / 18 mils | Sensor leads, control and hook-up wiring, light power feeds |
| 9–2 AWG | 30 mils / 27 mils | Element leads, motor connections, sub-feeds |
| 1–4/0 AWG | 45 mils / 40 mils | Main power conductors and bus connections |
Because the first bracket runs all the way from 30 AWG to 10 AWG, a 22 AWG conductor receives the same nominal 20 mils wall as a 10 AWG conductor. On the finer conductor that produces a generous insulation-to-conductor ratio, which is why the small gauges in this style tolerate handling stress, clamp pressure and edge contact better than their diameter alone would suggest.
UL 1330 22 AWG Specifications
| Item | Specification |
|---|---|
| UL Style | 1330 — insulated wire |
| Temperature Rating | 200°C maximum |
| Voltage Rating | 600 Vac |
| Conductor | 22 AWG, solid or stranded (style range 30 AWG–4/0 AWG) |
| Insulation | FEP, 20 mils minimum average thickness, 18 mils minimum at any point |
| Optional Covering | FEP, 10 mils or heavier; or glass braid, 7 mils or heavier |
| Flame Rating | Horizontal flame; VW-1 vertical flame test available |
| Oil Rating | Optional — oil resistant 80°C |
| Gasoline Resistance | Optional — tag may indicate suitability for immersion in gasoline and gasoline vapour |
| UL Recognition | UL Recognized Component — file on record |
| Marking | Per UL Subject 758 marking requirements |
| Permitted Use | Internal wiring of appliances; tag may indicate suitability for immersion in gasoline, gasoline vapour, and 80°C in oil |
| RoHS / REACH | Documentation available on request |
Where 22 AWG Fits Against the Neighbouring FEP Styles
At 22 AWG the choice among the FEP appliance wiring styles comes down to temperature and voltage rather than conductor availability, since all three cover this gauge. UL 1331 matches the 600 Vac rating and the same 20 mils wall at this gauge but is rated 150°C, and adds the Litz conductor option. UL 1333 is also 150°C, drops to 300 Vac, and uses a thinner 13 mils wall that yields a slimmer finished diameter for dense harnesses. UL 1330 is the one of the three that reaches 200°C, and the one that carries the gasoline immersion and vapour tag options in full.
Applications
Within its permitted use — internal wiring of appliances — UL 1330 22 AWG suits sensor and thermocouple extension leads, control circuit conductors and light-duty internal power connections in appliances where the wiring passes through zones approaching 200°C. It is commonly specified alongside heavier gauges of the same style so that an entire high-temperature harness section shares one component recognition. Where the lead contacts hot metalwork or is handled during service, the optional glass braid covering adds abrasion protection; where gasoline, gasoline vapour or hot oil exposure is expected, the corresponding tag options apply. For applications outside internal appliance wiring, confirm application suitability before specifying.
Key Features
- Fine-gauge end of a 30 AWG–4/0 AWG span — one style across signal and power
- 20 mils average FEP wall gives a generous insulation ratio at 22 AWG
- 200°C maximum at 600 Vac — highest temperature of the three FEP styles
- Optional FEP or glass braid covering for added mechanical protection
- Optional 80°C oil and gasoline resistance tag markings
- UL Recognized Component — file on record
Request a Quote
CableApex supplies UL 1330 22 AWG from 100 m per color and responds to B2B inquiries within 12 hours. Specify conductor construction (solid or stranded), colors, covering option and any oil or gasoline tag markings required through the form below.
