Confirming Your BOM Against UL 3071 18 AWG
A purchasing specification that calls for “18 AWG high-temperature silicone wire, 200°C, 600V” is describing UL AWM Style 3071. Before requesting a quotation, it’s worth checking that your BOM’s stated requirements actually match the confirmed Style 3071 construction — rather than assuming any 200°C silicone wire on the market is interchangeable. This page defines exactly what UL 3071 at 18 AWG covers, and what still needs to be specified separately.
The Confirmed UL 3071 Construction
| Parameter | UL 3071 |
|---|---|
| UL AWM Style | 3071 |
| Description | Single Conductor with Extruded Insulation |
| Featured Conductor Size | 18 AWG |
| Style Conductor Range | 18 AWG – 13 AWG |
| Conductor Construction | Solid or stranded |
| Temperature Rating | 200°C |
| Voltage Rating | 600 Vac |
| Flame | Horizontal flame |
| Insulation | Extruded SR (silicone rubber), 30 mils min. average / 27 mils min. at any point |
| Covering | Same as for Type SF-2, Fixture Wire UL 66 |
| Marking | General |
| UL-Defined Use | Internal Wiring of Appliances |
600 Vac is the confirmed AC rating — this page does not convert it to Vdc, and does not describe it vaguely as “up to 600V.” Horizontal flame is the confirmed flame requirement; this page does not substitute VW-1, FT1, FT2, or a vertical flame classification.
Why the SF-2 Covering Reference Matters
UL Style 3071’s covering is defined by reference: same as for Type SF-2, Fixture Wire UL 66. This is a defined cross-reference in the UL system, not an open description — we use this exact wording rather than guessing at the covering. The source data available for this page does not specify an exact braid yarn material, braid density, braid thickness, lacquer formulation, or covering colour, so none of these are stated here. If your BOM requires a specific covering specification beyond the SF-2 reference, that detail should be confirmed separately before quotation.
18 AWG: What This Page Targets
UL Style 3071 covers 18 AWG through 13 AWG. This page specifically targets the 18 AWG configuration for buyers with that exact SKU requirement — not a general overview of the full Style range. Conductor construction may be solid or stranded per the Style definition; the source data does not establish a universal conductor material or plating, so this page does not claim UL 3071 wire is bare copper, tinned copper, nickel-plated copper, silver-plated copper, OFC, or 99.99% copper. Conductor material, plating, and detailed strand construction remain order-specific and must be confirmed separately.
What UL 3071 Defines — and What It Doesn’t
Defined by the Style: temperature rating (200°C), voltage rating (600 Vac), flame requirement (Horizontal flame), conductor size range (18–13 AWG), conductor construction (solid or stranded), insulation material and minimum thickness (extruded SR, 30/27 mils), covering reference (SF-2 basis), and marking (General).
Not defined by the Style — and not stated on this page: conductor material or plating, exact strand count, finished outside diameter, insulation colour, termination or harness-processing method, and current-carrying capacity or ampacity. None of these values are invented here. If your BOM or quotation needs them, they should be requested directly.
Internal Wiring of Appliances
The confirmed UL 3071 use is internal wiring of appliances. This page targets appliance OEMs, appliance harness manufacturers, heating-equipment manufacturers, and their purchasing and technical sourcing teams evaluating this exact SKU for BOM confirmation. This page does not extend UL 3071 into building wiring, field wiring, or external cable applications.
RFQ Checklist for UL 3071 18 AWG
To request an accurate quotation, please provide:
- UL AWM Style 3071
- 18 AWG
- Solid or stranded requirement
- Conductor material / plating requirement, if specified
- Required wire colour
- Finished OD requirement, if your assembly has one
- Termination or harness-processing requirement, if relevant
- Quantity
- Reel or cut-length requirement
- Internal appliance application context
- Destination
- Required documentation
The requested construction should be checked against the available qualified manufacturing scope before quotation — not every conductor/plating combination automatically qualifies. Applicable RoHS / REACH documentation can be confirmed according to the ordered construction.
See our AWM Wire category, our Silicone Rubber Wire range, or the broader UL 3071 Silicone Wire Style category for other conductor sizes within this Style.
