UL 1213 PTFE Wire Overview
UL 1213 wire is a single-conductor PTFE hook-up wire for the internal wiring of electrical and electronic equipment. In the proposed dual-design construction, UL Style 1213 applies at 105°C, while M16878/4 or ANSI/NEMA HP3 Type E defines the 600 V construction and a temperature range up to 200°C. The exact approval, marking and available AWG range must be confirmed for the selected conductor construction.
Rating clarification: “600 V” and “200°C” on this page refer to the applicable M16878/4 / NEMA HP3 Type E construction. They must not be interpreted as an unrestricted rating for every UL Style 1213 configuration.
What Problems Does This PTFE Hook-Up Wire Address?
Equipment builders often need a compact internal wire that can route through crowded control cabinets while retaining stable electrical and mechanical performance around heat-producing components. The thin-wall PTFE construction reduces finished diameter compared with many conventional insulation systems. Silver-plated copper supports reliable conductor performance in elevated-temperature Type E applications, while PTFE is selected where temperature cycling, soldering heat and contact with common equipment-cleaning chemicals must be considered.
- Compact internal wiring: thin PTFE insulation helps conserve routing space in dense equipment assemblies.
- Clear dual-rating selection: the page separates the UL Style 1213 105°C scope from the M16878/4 Type E 600 V and 200°C scope.
- Multiple conductor choices: AWG size and stranding can be selected for the required termination method and wiring flexibility.
- Identification options: standard colors, custom colors, striping and surface marking can be reviewed against the required production quantity.
Construction and Rating Summary
| Item | Supplied Construction Reference |
|---|---|
| Wire type | Single-conductor high-temperature hook-up / lead wire |
| Conductor | Stranded annealed silver-plated copper |
| Insulation | Extruded PTFE (polytetrafluoroethylene) |
| UL temperature reference | UL AWM Style 1213: 105°C |
| Type E voltage reference | M16878/4 / ANSI/NEMA HP3 Type E: 600 V |
| Type E temperature reference | −65°C to +200°C for the applicable silver-plated copper construction |
| UL 1213 AWG reference | 12–32 AWG; selected construction and marking must be confirmed |
| 10 AWG limitation | Reference document identifies 10 AWG as M16878/4 only, not UL Style 1213 |
| Flame test | UL VW flame test where covered by the confirmed qualified construction |
| Standard colors | Black, brown, red, orange, yellow, green, blue, violet, gray and white |
UL 1213 Wire Size Chart
The following dimensions are supplied-construction references from the technical document. Final conductor count, insulation wall, outside diameter, tolerances and printed approval marking will be confirmed in the quotation and production specification.
| AWG | Stranding | PTFE Wall (in) | Nominal OD (in) | Reference Designation |
|---|---|---|---|---|
| 10 | 37 × 26 | 0.015 | 0.131 | M16878/4 only |
| 12 | 19 × 25 | 0.015 | 0.115 | UL 1213 / M16878/4 |
| 14 | 19 × 27 | 0.013 | 0.095 | UL 1213 / M16878/4 |
| 16 | 19 × 29 | 0.010 | 0.080 | UL 1213 / M16878/4 |
| 18 | 7 × 26 | 0.010 | 0.069 | UL 1213 / M16878/4 |
| 18 | 19 × 30 | 0.010 | 0.069 | UL 1213 / M16878/4 |
| 20 | 7 × 28 | 0.010 | 0.058 | UL 1213 / M16878/4 |
| 20 | 19 × 32 | 0.010 | 0.058 | UL 1213 / M16878/4 |
| 22 | 7 × 30 | 0.010 | 0.050 | UL 1213 / M16878/4 |
| 22 | 19 × 34 | 0.010 | 0.050 | UL 1213 / M16878/4 |
| 24 | 7 × 32 | 0.010 | 0.044 | UL 1213 / M16878/4 |
| 24 | 19 × 36 | 0.010 | 0.044 | UL 1213 / M16878/4 |
| 26 | 7 × 34 | 0.010 | 0.039 | UL 1213 / M16878/4 |
| 26 | 19 × 38 | 0.010 | 0.039 | UL 1213 / M16878/4 |
| 28 | 7 × 36 | 0.010 | 0.035 | UL 1213 / M16878/4 |
| 28 | 19 × 40 | 0.010 | 0.035 | UL 1213 / M16878/4 |
| 30 | 7 × 38 | 0.010 | 0.032 | UL 1213 / M16878/4 |
| 32 | 7 × 40 | 0.010 | 0.029 | UL 1213 / M16878/4 |
Typical Applications
UL 1213 PTFE hook-up wire is considered for protected internal wiring where the selected equipment design requires a compact, heat-resistant single conductor. Typical uses include industrial control cabinets, power-supply assemblies, instrumentation, electronic equipment, test systems and other high-reliability electrical equipment. It is not presented as building wire, open cable-tray wiring or a complete outdoor power cable.
UL 1213 and M16878/4 Selection Guidance
| Requirement | Information to Send | Why It Matters |
|---|---|---|
| Conductor size | AWG and required stranding | Determines conductor construction, nominal OD and approval scope |
| Required rating | UL 1213, M16878/4 Type E or both | Prevents mixing the 105°C UL scope with the 600 V / 200°C Type E scope |
| Identification | Insulation color, stripe and print legend | Supports harness assembly and maintenance identification |
| Installation | Equipment type, routing space and maximum operating temperature | Helps confirm whether the proposed construction fits the application |
| Commercial requirement | Total length, cut lengths, packaging and delivery destination | Allows production and logistics to be quoted accurately |
Standards and Verification
ANSI/NEMA HP 3 covers PTFE-insulated solid and stranded hook-up wire for the internal wiring of high-reliability electrical and electronic equipment, including 600 V Type E constructions. For any order, TEBAOFLEX will confirm the requested conductor construction, applicable marking and supporting documentation before production. Review our cable certifications and laboratory support information or submit the exact specification for verification.
Frequently Asked Questions
What is UL Style 1213 wire?
UL Style 1213 is a PTFE-insulated single-conductor appliance wiring material used for protected internal wiring in electrical and electronic equipment. The style temperature reference is 105°C.
Is UL 1213 wire rated for 600 volts?
On this product page, the 600 V value belongs to the M16878/4 / NEMA HP3 Type E construction. It should not be treated as an unrestricted UL 1213 rating. The final print legend and approval scope depend on the ordered construction.
What is the difference between UL 1213 and M16878/4 Type E?
UL 1213 defines the applicable AWM style and its 105°C reference. M16878/4 / NEMA HP3 Type E defines a 600 V PTFE hook-up-wire construction that can be rated to 200°C with the applicable silver-plated copper conductor.
Is 10 AWG available as UL 1213?
The supplied technical reference identifies 10 AWG as M16878/4 only. UL 1213 coverage should not be claimed for that size without separate approval documentation.
Can the color, striping and surface marking be customized?
Standard colors and project-specific identification can be reviewed. Send the AWG, construction, color or stripe, print legend, length and quantity so feasibility can be confirmed.
Related PTFE High-Temperature Wires
- UL 1212 PTFE 80°C hook-up wire
- UL 1198 600 V 150°C PTFE wire
- UL 1199 600 V 200°C PTFE wire
- High-temperature and specialty cable range
Send Your Requirements
For an accurate quotation, send the required AWG, stranding, applicable standard, temperature rating, insulation color, stripe or marking, total length, cut lengths, packaging and delivery destination.
Technical content reviewed: September 22, 2026. Dimensions are reference values and remain subject to the confirmed production specification.
