TEBAOFLEX UL 1332 FEP High-Temperature Lead Wire (UL AWM Style 1332) is a compact 300 V, -80°C to +200°C internal appliance and industrial control hook-up wire combining an ASTM B33 stranded tinned annealed copper conductor with a melt-extruded 0.33 mm (13 mil) fluorinated ethylene propylene (FEP) fluoropolymer wall. Its low friction coefficient, high dielectric constant stability, and chemical inertness make it a space-saving workhorse for densely routed thermal harnesses.
1. High-Temperature Application Scope & Fluoropolymer Style Matrix
Where standard PVC or XLPE hook-up wires embrittle above 105–125°C and thick silicone leads crowd miniature terminal housings, UL 1332 provides continuous 200°C service in a slim, slick fluoropolymer profile:
- Commercial Cooking, Heating & HVAC Equipment: Internal control and heater leadouts inside convection ovens, espresso boilers, heat-pump defrost assemblies, gas igniters, and band heaters.
- Sensors, Instrumentation & Analytical Electronics: Low-capacitance, low-outgassing internal harnesses for RTD/thermocouple conditioning boards, semiconductor wet benches, flow meters, and medical sterilizers.
- Motors, Transformers & Chemical Pumps: Compact coil leads, Class H stator jumpers, and chemical-dosing pump enclosures exposed to aggressive solvents, fluxes, hydraulic oils, and moisture.
Compare sister fluoropolymer styles across our high-temperature and specialty wire catalog to match voltage and wall thickness:
| UL AWM Fluoropolymer Style | Rated Voltage | Max. Temp. | Nominal Wall | Primary Selection Criterion |
|---|---|---|---|---|
| UL 1332 FEP (This Page) | 300 V | +200°C | 0.33 mm (13 mil) | Compact 300 V, 200°C thin-wall appliance & sensor hook-up |
| UL 1333 FEP Wire | 300 V | +150°C | 0.33 mm (13 mil) | Cost-optimized 150°C thin-wall FEP internal lead wire |
| UL 1330 FEP Wire | 600 V | +200°C | 0.51 mm (20 mil) | 600 V heavy-wall FEP power & industrial appliance leads |
| UL 1331 FEP Wire | 600 V | +150°C | 0.51 mm (20 mil) | 600 V, 150°C FEP cabinet & control transformer wiring |
| UL 1901 FEP Wire | 600 V | +200°C | 0.41 mm (16 mil) | Mid-wall 600 V, 200°C FEP appliance & heater lead wire |
| UL 10503 PFA Wire | 600 V | +250°C | 0.51 mm (20 mil) | Step-up +250°C PFA fluoropolymer thermal & chemical duty |
2. Concentric Wire Construction (UL AWM Style 1332)
Manufactured by continuous high-temperature melt extrusion for pinhole-free dielectric concentricity across long production spools:
24 AWG to 10 AWG, preventing copper oxidation up to 200°C while ensuring fast, flux-clean solderability and gas-tight terminal crimping (silver-plated or nickel-plated copper available on request).0.33 mm (0.013 in / 13 mil) nominal wall of virgin fluorinated ethylene propylene (FEP) fluoropolymer (minimum point thickness ≥ 0.30 mm / 12 mil), providing non-stick conduit pullability, clean automated blade stripping, and complete chemical resistance.TEBAOFLEX UL 1332 FEP 200C 300V AWG.3. Electrical, Thermal & Chemical Performance Specifications
| Parameter | Specification Value | Standard / Test Condition |
|---|---|---|
| Rated Voltage | 300 V AC RMS | UL 758 AWM Style 1332 internal appliance wiring |
| Dielectric & Spark Test | 2,000 V AC (1 min) | 2,500 V AC spark | 100% in-line spark test & dielectric withstand verification |
| Operating Temperature Range | -80°C to +200°C continuous | Cryogenic brittleness resistance + sustained 200°C heat aging |
| Dielectric Constant & Loss | 2.1 (1 kHz – 1 MHz) | Stable across temperature & humidity (<0.01% water absorption) |
| Flame Retardancy | UL VW-1 / CSA FT1 & FT2 | Self-extinguishing non-flammable fluoropolymer (LOI > 95%) |
| CSA Cross-Reference | CSA AWM I A/B FT1 FT2 | Confirm required dual-marking & certification docs at RFQ stage |
| Chemical & Environmental | Inert to oils, acids, alkalis & solvents | RoHS-3 compliant per European Directive 2015/863 |
Mechanical Cut-Through & Voltage Clearance Note: Because UL 1332 utilizes a slim 0.33 mm (13 mil) FEP wall rated for 300 V internal circuits, protect wire bundles where harnesses cross sharp sheet-metal chassis edges or vibration pinch points. Where circuits exceed 300 V (up to 600 V) or require extra mechanical wall margin, specify UL 1330 (20 mil wall).
4. UL 1332 AWG Dimension, Stranding & Resistance Schedule (24 AWG – 10 AWG)
Nominal dimensions below reflect standard ASTM B33 stranded tinned copper constructions with a 13 mil (0.33 mm) nominal FEP wall. Finer instrumentation gauges (30, 28, 26 AWG) or 19-strand high-flex constructions are available on request (all part numbers use clean standard style-gauge designations):
| Part Designation | Wire Size (AWG) | Conductor Strands | Nom. Cond. Ø (mm) | Nom. FEP Wall (mil / mm) | Approx. OD (in / mm) | Max. DC Res. @20°C (Ω/km) | Approx. Weight (lb/kft | kg/km) |
|---|---|---|---|---|---|---|---|
| UL1332-24AWG | 24 AWG | 7 / 0.203 mm (7/32) | 0.61 | 13 / 0.33 | 0.050 / 1.27 | 88.6 | 3.2 | 4.8 |
| UL1332-22AWG | 22 AWG | 7 / 0.254 mm (7/30) | 0.76 | 13 / 0.33 | 0.055 / 1.40 | 54.8 | 4.7 | 7.0 |
| UL1332-20AWG | 20 AWG | 7 / 0.320 mm (7/28) | 0.96 | 13 / 0.33 | 0.065 / 1.65 | 34.6 | 6.7 | 10.0 |
| UL1332-18AWG | 18 AWG | 7 / 0.404 mm (7/26) | 1.21 | 13 / 0.33 | 0.075 / 1.90 | 21.8 | 9.0 | 13.4 |
| UL1332-16AWG | 16 AWG | 7 / 0.511 mm (7/24) | 1.53 | 13 / 0.33 | 0.085 / 2.16 | 13.7 | 12.1 | 18.0 |
| UL1332-14AWG | 14 AWG | 7 / 0.643 mm (7/22) | 1.93 | 13 / 0.33 | 0.102 / 2.59 | 8.62 | 16.8 | 25.0 |
| UL1332-12AWG | 12 AWG | 19 / 0.455 mm (19/25) | 2.28 | 13 / 0.33 | 0.115 / 2.92 | 5.43 | 23.0 | 34.2 |
| UL1332-10AWG | 10 AWG | 37 / 0.404 mm (37/26) | 2.83 | 13 / 0.33 | 0.145 / 3.68 | 3.60 | 33.0 | 49.1 |
5. Frequently Asked Engineering Questions & Custom RFQ
How does UL 1332 compare with UL 1330, UL 1331, and UL 1333 FEP hook-up wires?
All four styles use extruded FEP fluoropolymer insulation, but differ in wall thickness, voltage, and temperature: UL 1332 is rated 300 V / 200°C with a compact 0.33 mm (13 mil) nominal wall; UL 1333 is rated 300 V / 150°C (13 mil wall); UL 1330 is rated 600 V / 200°C with a thicker 0.51 mm (20 mil) wall; and UL 1331 is rated 600 V / 150°C (20 mil wall).
Why do OEM engineers choose UL 1332 FEP wire over silicone rubber hook-up wire at 200°C?
Although both share a 200°C rating, UL 1332 uses a dense 0.33 mm (13 mil) fluoropolymer wall that cuts overall wire diameter by 35% to 50%, offers a low coefficient of friction for tight conduit pulling, resists soldering-iron meltback during PCB termination, and is unaffected by hydrocarbon oils, flux solvents, and moisture.
What conductor material is used in TEBAOFLEX UL 1332 wire?
Standard TEBAOFLEX UL 1332 uses stranded tinned annealed copper per ASTM B33 across 24 AWG to 10 AWG, combining reliable crimp/solderability up to 200°C with corrosion protection. Silver-plated or nickel-plated copper stranding can also be quoted for specialized sensor or aerospace harnesses.
Does FEP insulation shrink or melt back during wave or hand soldering?
With a crystalline melting point around 260°C to 270°C, extruded FEP resists brief soldering-iron contact far better than PVC or XLPE hook-up wires, allowing clean automated stripping and close-pitch terminal soldering without insulation pullback.
What colors and surface markings are available for UL 1332?
TEBAOFLEX supplies UL 1332 in all ten standard EIA circuit-coding colors (Black, White, Red, Blue, Yellow, Green, Brown, Orange, Violet, Grey), Green/Yellow, and Natural translucent FEP, printed TEBAOFLEX UL 1332 FEP 200C 300V AWG.
When should I step up from UL 1332 (200°C FEP) to UL 10503 (250°C PFA) or UL 1180 (200°C PTFE)?
UL 1332 covers 300 V internal wiring up to +200°C in long continuous melt-extruded spool lengths. Step up to UL 10503 PFA (600 V, +250°C) when ambient temperatures exceed 200°C, or choose UL 1180 PTFE when higher 327°C solder-iron immunity is required.
Specify Your UL 1332 200°C 300V FEP Hook-Up Wire Schedule
Send your AWG gauge(s), stranding preference (7-strand or 19-strand high-flex), EIA color breakdown, spool length or cut-and-stripped harness specs, and target quantity. TEBAOFLEX engineers reply with a datasheet and factory quote within 24 hours.
