UL 3071 18 AWG Silicone Power Wire Overview
UL AWM Style 3071 is a single-conductor extruded silicone rubber (SR) insulated wire construction, supplied by CableApex as a factory-direct manufacturer. This page focuses specifically on the 18 AWG configuration within Style 3071’s 18 AWG–13 AWG conductor range. The wire is rated 200°C and 600 Vac, with SR insulation applied at 30 mils minimum average / 27 mils minimum at any point. 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 Silicone Rubber Construction
| Parameter | UL Style 3071 |
|---|---|
| UL Subject / Section | 758, Section 3 |
| Construction | Single conductor with extruded insulation |
| Featured Conductor Size | 18 AWG |
| UL Style Conductor Range | 18 AWG – 13 AWG |
| Conductor Form | Solid or stranded |
| Rated Temperature (Maximum) | 200°C |
| Voltage Rating | 600 Vac |
| Flame Rating | Horizontal flame |
| Insulation | Extruded silicone rubber (SR), 30 mil min. average / 27 mil min. at any point |
| Covering | Same as for Type SF-2 (Fixture Wire UL 66) |
| Marking | General |
| Use | Internal wiring of appliances |
| RoHS / REACH | Confirmed during quotation according to ordered materials and documentation requirements |
18 AWG Power Connections for Appliance Internal Wiring
This page focuses specifically on the 18 AWG configuration within UL Style 3071’s 18 AWG–13 AWG conductor range. The featured combination — 18 AWG, extruded silicone rubber insulation, 200°C, 600 Vac, and the 30 mil insulation wall — differentiates this page from a general Style 3071 overview. We do not publish an ampacity figure, maximum amps, recommended amps, or breaker or fuse size for 18 AWG or any AWG; current-carrying requirements depend on the equipment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 Silicone Rubber Insulation Requirement
Style 3071 specifies extruded SR insulation at 30 mils minimum average thickness and 27 mils minimum thickness at any point across its 18 AWG–13 AWG conductor range. We use this UL terminology precisely — this is a minimum average thickness, not a nominal production dimension — and we do not calculate or publish a finished outside diameter from AWG and insulation thickness, as conductor geometry, covering construction, and manufacturing tolerances are not part of the confirmed technical basis for this page.
Type SF-2 Referenced Covering Construction
The supplied Style 3071 record states that the covering is the same as for Type SF-2 (Fixture Wire UL 66). This page does not name a more specific covering material — such as fiberglass, aramid, or lacquered braid — because the confirmed technical basis does not establish that detail beyond the Type SF-2 reference. If your order requires a specific verified covering construction, this can be confirmed and described separately during quotation once the exact production specification is provided.
UL 3071 Technical Specifications
See the specification table above for the complete confirmed ratings applicable to this featured 18 AWG product.
Appliance Internal Power Wiring Applications
UL Style 3071’s confirmed use is internal wiring of appliances. Appropriate commercial application language for this page includes appliance internal power wiring, internal electrical connections inside appliances, protected appliance power leads, internal component-to-component power connections, and OEM appliance internal connections where Style 3071 is specified. This page does not broaden the use into building wiring, branch circuits, field wiring, feeder cable, external appliance cord, extension cord, tray cable, or conduit cable — final acceptability for any specific installation depends on the equipment design and applicable end-product requirements.
Note that UL Style 3071’s use is stated simply as internal wiring of appliances — it does not carry the “totally enclosed” restriction found in UL Style 3135’s use statement. These are separate Styles with separate use conditions, and this page does not apply UL 3135’s wording to UL 3071.
UL 3071 vs Other 200°C Power Wire Styles
UL Style 3071 shares its 200°C / 600 Vac rating with our UL 1330 4 AWG FEP Power Wire, but the two differ meaningfully in insulation system, conductor range, and construction requirements: UL 3071 uses silicone rubber insulation across an 18–13 AWG range with a Type SF-2-referenced covering, while UL 1330 uses FEP insulation across a much broader 30 AWG–4/0 AWG range with an optional FEP or glass-braid covering. UL 3071 also differs from UL 1283 (PVC, 105°C / 600 Vac, 8 AWG) and UL 3321 (XLPE, 150°C, 600 Vac / 750 Vdc, 6 AWG) in both temperature rating and insulation material. Select based on the confirmed Style, material, rating, and conductor size your application actually requires — a shared temperature rating does not make these Styles interchangeable.
What to Specify When Ordering UL 3071 18 AWG Wire
To provide an accurate quotation for UL 3071 18 AWG silicone power wire, please specify:
- Required AWG (this page’s featured size is 18 AWG)
- Solid or stranded construction
- Conductor material or finish requirement
- Operating temperature
- Operating voltage
- Covering requirement or exact construction, if specified
- Required finished OD, if dimensionally constrained
- Insulation or covering colour, if applicable
- Marking requirement
- Order quantity
- Packaging requirement
- UL documentation requirement, including RoHS / REACH if needed
- Appliance type
- Internal power connection description
- 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 3071 constructions can be supplied through the relevant qualified manufacturing scope for this Style. UL marking and documentation are confirmed according to the qualified Style 3071 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 3071 Silicone Wire category for related constructions across the Style’s full conductor range.
