UL 1330 4 AWG FEP Power Wire Overview
UL AWM Style 1330 is a FEP insulated wire construction, supplied by CableApex as a factory-direct manufacturer. This page focuses specifically on the 4 AWG configuration within Style 1330’s broader 30 AWG–4/0 AWG conductor range. The wire is rated 200°C and 600 Vac, with FEP insulation applied at the Style’s 9–2 AWG thickness band for the featured 4 AWG size. UL defines the Style’s use as internal wiring of appliances; “power wire” and “high-temperature appliance power connection” are CableApex’s commercial positioning for this product, not UL’s own terminology.
200°C / 600 Vac High-Temperature Power Wiring
| Parameter | UL Style 1330 |
|---|---|
| UL Subject / Section | 758, Section 1 |
| Product Type | Insulated wire |
| Featured Conductor Size | 4 AWG |
| UL Style Conductor Range | 30 AWG – 4/0 AWG |
| Conductor Form | Solid or stranded |
| Rated Temperature (Maximum) | 200°C |
| Voltage Rating | 600 Vac |
| Flame Rating | Horizontal flame |
| Insulation | FEP |
| Applicable 4 AWG Insulation Wall | 30 mil min. average / 27 mil min. at any point |
| Optional Covering | FEP, 10 mils or heavier, or glass braid, 7 mils or heavier |
| Optional Conditions | Oil Resistant 80°C; Gasoline Resistant, where qualified |
| Marking | General; tag may also indicate suitability for immersion in gasoline, gasoline vapor, and/or 80°C in oil |
| Use | Internal wiring of appliances |
| RoHS / REACH | Confirmed during quotation according to ordered materials and documentation requirements |
4 AWG FEP Construction for Appliance Internal Power Connections
This page focuses specifically on the 4 AWG configuration within UL Style 1330’s 30 AWG–4/0 AWG conductor range. The featured combination — 4 AWG, FEP insulation, 200°C, 600 Vac, and the applicable 30 mil insulation wall — differentiates this page from a general Style 1330 overview. We do not publish an ampacity figure, maximum current, allowable current, breaker size, or fuse size for 4 AWG or any AWG; current-carrying requirements depend on the equipment design, installation conditions, and applicable end-equipment evaluation, not on AWG alone.
30-Mil FEP Insulation Requirement
4 AWG falls within Style 1330’s 9–2 AWG insulation band, which specifies a minimum average FEP thickness of 30 mils and a minimum thickness of 27 mils at any point. This is distinct from the Style’s other bands — the 30–10 AWG band specifies 20 mil average / 18 mil minimum, and the 1–4/0 AWG band specifies 45 mil average / 40 mil minimum — and this page uses only the values applicable to the featured 4 AWG size. We do not calculate or publish a finished outside diameter from AWG and insulation thickness, as conductor geometry and production tolerances are not part of the confirmed technical basis for this page.
Optional FEP or Glass-Braid Covering
UL Style 1330 permits an optional covering over the FEP-insulated conductor: either FEP at 10 mils or heavier, or glass braid at 7 mils or heavier. This covering is optional — the basic UL 1330 4 AWG construction is FEP-insulated wire, and not every order automatically includes an outer covering. We do not describe the covering as the primary insulation, and do not imply that every UL 1330 4 AWG wire consists of FEP insulation plus glass braid as a standard combination; specify your covering requirement, if any, when requesting a quotation.
The Style also permits optional Oil Resistant 80°C and Gasoline Resistant conditions, with a tag that may indicate suitability for immersion in gasoline, gasoline vapor, or 80°C in oil. These are construction-dependent options, not automatic properties of every UL 1330 wire — this page does not broaden them into general chemical resistance, solvent resistance, or hydraulic-fluid resistance claims.
Appliance Internal Power Wiring Applications
UL Style 1330’s confirmed use is internal wiring of appliances. Appropriate commercial application language for this page includes appliance internal power wiring, appliance internal power connections, high-temperature appliance power leads, internal connections between protected appliance components, and OEM appliance internal wiring where UL Style 1330 is specified. This page does not promote UL 1330 as building wiring, field wiring, an external appliance supply cord, portable cord, flexible cord, or branch circuit wire — final acceptability for any specific installation depends on the equipment design and applicable end-product requirements.
UL 1330 vs Other High-Temperature Power Wire
UL Style 1330 is FEP-specific, distinct from CableApex’s other high-temperature fluoropolymer AWM Styles. Our UL 1659 pages address a PTFE/TFE construction rated 250°C / 600 Vac — a higher temperature rating in a different material family, not a substitute for UL 1330. Our UL 10362 PFA Wire is a separate PFA-based Style, also rated 250°C / 600 Vac, again a different material and Style from UL 1330’s FEP construction. UL 1330 also differs from our UL 1283 8 AWG PVC Power Wire, which uses PVC insulation rated 105°C / 600 Vac for a lower-temperature equipment power-connection need. Select based on the confirmed material, rating, and conductor size your application actually requires rather than substituting between these Styles.
What to Specify When Ordering UL 1330 4 AWG Wire
To provide an accurate quotation for UL 1330 4 AWG FEP power wire, please specify:
- Required conductor size (this page’s featured size is 4 AWG)
- Solid or stranded construction
- Conductor material or plating requirement
- Operating temperature
- Operating voltage
- Optional covering requirement — FEP or glass braid, if any
- Oil- or gasoline-resistance requirement, if applicable
- Required finished OD, if dimensionally constrained
- Insulation colour
- Marking requirement
- Order quantity
- Packaging requirement
- UL documentation requirement, including RoHS / REACH if needed
- Appliance type
- Internal power connection application
- Shipping destination
Send this information and we respond with a quotation within 12 business hours. Production lead time depends on the confirmed construction and order quantity, and shipping options and applicable Incoterms are confirmed during quotation according to destination.
UL Marking and Documentation
Qualifying UL AWM Style 1330 constructions can be supplied through the relevant qualified manufacturing scope for this Style. UL marking and documentation are confirmed according to the qualified Style 1330 construction supplied for the order and are not identical across every commercial variation. RoHS and REACH are separate regulatory frameworks from UL recognition; applicable RoHS / REACH documentation requirements can be confirmed according to the ordered construction.
Browse our full Power Cables category, or see the technical UL 1330 FEP Wire category for related constructions across the Style’s full conductor range.
