FEP-Insulated High-Temperature Hook-Up Wire 375 V
This 375 V stranded hook-up wire features high-performance FEP insulation and is available with bare or tinned copper conductors. It combines an extended temperature range with excellent chemical resistance, low-temperature flexibility and stable dielectric properties for precision electrical and electronic applications.
Key Highlights
FEP insulation · 375 V peak operating voltage · 600 V UL rating · Bare or tinned copper conductor · Fixed temperature range from -90°C to +180°C · Excellent chemical and solvent resistance · Stable dielectric characteristics · Good low-temperature flexibility · Flame retardant and self-extinguishing · Oil resistant · UL recognized · RoHS compliant
This FEP-insulated hook-up wire is designed for internal wiring applications requiring reliable electrical insulation across a wide temperature range. Its low, nearly frequency-independent dielectric characteristics make it suitable for high-frequency equipment and applications requiring accurate signal transmission.
Typical applications include:
- High-frequency and broadband electronic equipment
- Coaxial and microwave systems
- Precision measurement and communication equipment
- Chemical processing equipment
- Industrial furnaces and kiln systems
- Brickworks and heat-treatment equipment
- Heating appliances
- High-temperature internal equipment wiring
Conductor Options: Stranded bare copper or stranded tinned copper
Conductor Standard: ASTM B286
Insulation: FEP compound, type 6YI1 according to VDE 0207-6
Available Insulation Colors: Black, blue, brown, grey, yellow, green, violet, white, orange, red and natural
Cable Type: Single-core stranded hook-up wire without an outer jacket
Maximum Peak Operating Voltage: 375 V
UL Voltage Rating: 600 V
Test Voltage: 2000 V
Minimum Bending Radius for a Single Bend: 0.5 × insulated wire outer diameter
Radiation Resistance: 1 × 10⁷ cJ/kg
Temperature Range for Fixed Installation: -90°C to +180°C
Temperature Range for Flexible Application: -55°C to +180°C
Maximum Temperature for Limited-Time Use: +200°C
Maximum Temperature under UL Rating: +150°C
Flame Performance: Flame retardant and self-extinguishing according to IEC 60332-1-2 and VDE 0482-332-1-2; UL FT2
Oil Resistance: Very good according to UL 758 after 80 days at +80°C
Chemical Resistance: Very good resistance to acids, halogens, bases, chlorinated solvents and organic and inorganic compounds
Reference Approval: UL recognized
Environmental Compliance: RoHS compliant
| Conductor Finish | AWG Size/Stranding | Nominal Strand Diameter (mm) | Approx. Outer Diameter (mm) | Copper Weight (kg/km) | Approx. Wire Weight (kg/km) |
| Bare Copper | AWG 28/7 | 0.127 | 0.70 | 0.9 | 1.4 |
| Bare Copper | AWG 26/7 | 0.160 | 0.80 | 1.4 | 2.0 |
| Bare Copper | AWG 24/7 | 0.203 | 0.93 | 2.2 | 2.9 |
| Bare Copper | AWG 22/7 | 0.254 | 1.08 | 3.4 | 4.2 |
| Bare Copper | AWG 20/7 | 0.320 | 1.28 | 5.4 | 6.3 |
| Tinned Copper | AWG 28/7 | 0.127 | 0.70 | 0.9 | 1.4 |
| Tinned Copper | AWG 26/7 | 0.160 | 0.80 | 1.4 | 2.0 |
| Tinned Copper | AWG 24/7 | 0.203 | 0.93 | 2.1 | 2.9 |
| Tinned Copper | AWG 22/7 | 0.254 | 1.08 | 3.4 | 4.2 |
| Tinned Copper | AWG 20/7 | 0.320 | 1.28 | 5.4 | 6.3 |
| Tinned Copper | AWG 16/19 | 0.287 | 1.79 | 11.8 | 12.7 |
The AWG 16 reference dimension is available with a tinned copper conductor. Other conductor sizes, insulation colors and customized dimensions are available on request.
THE FACTORY
BEHIND EVERY METER
Founded in 2007 in Foshan, Guangdong, Hulk Electric has grown from a regional producer into a globally recognised manufacturer of customised industrial cable solutions. Our 10,000㎡ facility runs on Toyota Production System lean principles, operated by 150+ skilled professionals producing over 300,000 metres every month.
Every cable you see on this page — including the HK-TRVV series — is engineered, extruded, tested, and shipped from that single facility. No trading company sits between you and the extrusion line.
Source Factory
Direct manufacturer — no middlemen, no markups. You deal with the engineers who run the line.
Deep Customization
Conductor, shielding, jacket compound, colour coding, certification — built to your exact spec.
7-Day Sampling
Rapid samples for new specifications. 15-day lead time on standard production orders.
Global Compliance
35+ certifications covering UL, CE, TÜV, IEC, RoHS and REACH for every major market.
BEFORE YOU ORDER
For stocked configurations listed in the ordering table, MOQ is 100 metres per specification. Custom configurations — non-standard core counts, jacket colours, or special compounds — carry a 500 metre MOQ. Samples of 5–10 metres are available free of charge for qualification testing.
Use shielded (P or PP suffix) whenever the cable runs alongside servo drives, VFDs, or inverters, or when carrying encoder, sensor, or analogue signals. Unshielded is suitable for pure power distribution and simple on/off control lines. If in doubt, our engineering team can review your cabinet layout and advise — this is included with any quotation.
Yes. Send us the existing part number or a sample and we will produce a cross-reference specification with matching electrical, mechanical, and dimensional characteristics. Most cross-references are turned around within 3 working days, with a physical sample following within 7 days.
Standard shipments include the CE Declaration of Conformity, RoHS and REACH statements, and the batch test report. UL Recognition (UL 2464 / UL 20549) is available on request for North American projects — specify this at the quotation stage as it affects the material specification.
Standard configurations ship in 15 working days from order confirmation. Custom-engineered specifications typically require 20–25 working days, depending on compound availability. Rapid sampling for new specifications is 7 days. We will confirm the exact date in writing with your order acknowledgement.
SEND US YOUR
SPECIFICATION
Tell us your core count, cross-section, and application — our engineering team will confirm the right configuration and send pricing within one working day.
Your information is used only to prepare your quotation and is never shared with third parties.
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