UL 1007 18 AWG — Selected Conductor Size Within the Style Range
This page covers UL AWM Style 1007 supplied at 18 AWG. The full Style range is 32 AWG through 16 AWG, so 18 AWG sits within the upper-mid portion of that range — two sizes below the 16 AWG upper limit. UL Style 1007 is rated 80°C at 300 Vac, with extruded PVC insulation at 15 mils minimum average and 13 mils minimum at any point, and the stated use is internal wiring of appliances.
The insulation wall is uniform across the entire 32–16 AWG Style range, which means the finished outer diameter at 18 AWG follows from the conductor construction alone rather than from a stepped wall class. This is worth noting when specifying 18 AWG alongside other sizes in the same assembly. For the full Style overview and other conductor sizes, see UL 1007 Wire.
UL AWM Style 1007 — Specifications
| UL AWM Style | 1007 |
| UL Subject / Section | 758, Section 1 |
| Temperature rating | 80°C |
| Voltage rating | 300 Vac |
| Conductor range (Style scope) | 32 AWG – 16 AWG, solid or stranded |
| Conductor size (this page) | 18 AWG |
| Insulation | Extruded PVC |
| Minimum average insulation thickness | 15 mils (0.38 mm) |
| Minimum insulation at any point | 13 mils (0.33 mm) |
| Optional construction | 60°C or 80°C Oil — optional, depends on the qualified ordered construction |
| Flame rating | Horizontal flame; VW-1 vertical flame test available |
| Marking | Per UL Subject 758 marking requirements; confirmed for the qualified ordered construction |
| Use per UL Style file | Internal wiring of appliances; tags may indicate 600 V Peak — For Electronic Use Only |
| RoHS / REACH | Requirements confirmed according to ordered materials and documentation requirements |
The 600 V Peak statement is an optional tag marking for electronic-use conditions, not the working voltage rating. The normal rating is 300 Vac.
Specifying 18 AWG
18 AWG is selected when the equipment design calls for this conductor size at the internal lead position in question. Routing constraints, termination hardware, current requirements and the final equipment design all determine whether it is the appropriate size — the conductor size on its own does not establish suitability.
Where 18 AWG is confirmed as the required size, the remaining construction detail is settled at order stage. The UL Style file does not define a conductor material, plating or strand count, so these follow from the order specification rather than from the Style:
- Solid or stranded. Both are within the UL Style 1007 scope. Stranded construction is generally specified where the lead is formed or positioned during assembly; solid is available where the routing path is fixed.
- Conductor finish. Bare or tinned copper is confirmed during quotation. Tinned conductors are commonly specified where the assembly process includes soldering steps or where wire is stored for an extended period before use.
- Colour. Standard colours are available; colour identification across multiple lead positions should be specified as a list with quantity per colour.
- Reel, spool or cut length. Confirm the format your assembly process works with, including any fixed cut length requirement.
Appliance Internal Wiring Applications
The UL Style 1007 file states the use as internal wiring of appliances. At 18 AWG, 80°C and 300 Vac, this construction is typically specified for:
- Protected internal lead connections inside appliance assemblies
- Internal switch and terminal leads within the appliance housing
- Protected internal interconnections where a UL 1007 construction is specified by the equipment design
- OEM appliance production where 18 AWG is a repeated internal lead size across the build
UL Style 1007 is not supplied or positioned as field wiring, building wire, external wiring, general control wiring, power cable or motor lead wire. Suitability for a specific appliance design depends on the equipment, the routing arrangement, the ordered construction and the applicable equipment-level evaluation.
OEM Processing and Harness Production
UL 1007 18 AWG wire can be supplied for OEM harness production where the finished assembly uses the wire as appliance internal wiring. Where harness production is part of your process, settle the following at enquiry:
- Cut-to-length supply. Fixed-length cutting can be arranged where the assembly uses repeated lead lengths.
- Colour identification. Send the colour list with quantity per colour rather than a single total.
- Stripping. Confirm the insulation dimensions so stripper settings can be calibrated to the actual ordered construction.
- Crimping and termination. Confirm the terminal hardware so the conductor construction can be checked against the crimp barrel range.
- Soldering. Where soldering is part of the process, specify a tinned conductor finish at the order stage.
- Reel and spool format. Confirm the format and length your assembly line works with.
Supplying wire for harness production does not change the Style boundary — the finished assembly must be used as appliance internal wiring.
Optional Oil Construction
UL Style 1007 permits an optional 60°C or 80°C Oil construction. This is not a characteristic of all UL 1007 wire — where oil performance is required at the wire location, the optional construction must be specified at enquiry and depends on the qualified ordered construction. Confirm the requirement and the applicable marking before production.
UL Marking and Order Documentation
CableApex supplies UL AWM Style 1007 construction from factory production. UL marking and Style-specific documentation depend on the qualified ordered construction, and both should be confirmed during quotation. Where RoHS, REACH or other documentation is required, specify the requirement at enquiry so availability can be confirmed for the ordered materials and construction.
Purchasing — What to Send for an 18 AWG Quotation
Send the following so a quotation can be prepared against a defined construction:
- Quantity, and monthly or annual usage estimate if the size is a repeated production item
- Conductor construction — solid or stranded
- Conductor finish — bare or tinned
- Colour list with quantity per colour
- Reel or spool length
- Cut-length requirement, if applicable
- Stripping requirement
- Termination requirement — crimp, solder or screw terminal
- Marking requirement
- Documentation requirement
Related UL AWM Styles
Buyers specifying UL 1007 18 AWG may also consider: UL 1007 Wire for the full 32–16 AWG Style range and other conductor sizes; UL 1015 (80–105°C / 600 Vac or 750 Vdc, extruded PVC, 30 AWG–2000 kcmil, 30 mils min avg wall — the higher-voltage PVC Style where 300 Vac is insufficient or where conductor sizes below 16 AWG are needed); and UL 1569 (80–105°C / 300 Vac, extruded PVC, 30–2 AWG, 15 mils min avg wall — same 300 Vac class and thin wall with a wider conductor range and a 105°C temperature option). The wider ranges are available under PVC Insulated Wire and AWM Wire.
