125°C 600V XLPE XLPO High Temperature Hook-Up Wire is a single-core equipment wire with solid or stranded bare or tinned copper. Choose XLPE or XLPO insulation for protected internal appliance, inverter, energy storage, control cabinet and electrical equipment connections. The documented size range is 26 AWG to 9 AWG.
What is 125°C 600V XLPE or XLPO wire?
This product is a 600V single-core hook-up wire with a 125°C temperature rating. It addresses purchasing needs commonly described as 125°C equipment wire, 600V XLPE hook-up wire, XLPO insulated wire, inverter connection wire or energy storage internal wire. Final selection should be based on conductor size, conductor finish, insulation material, finished diameter, terminals and the complete installation environment.
Key product features
- 125°C temperature rating: intended for protected internal wiring where the complete installation supports the documented temperature.
- 600 V rating: suited to internal equipment circuits requiring a 600V single-core wire.
- XLPE or XLPO insulation: two cross-linked insulation options available according to the submitted specification.
- Copper conductor choices: solid or stranded, bare or tinned copper can be reviewed for the required termination and assembly process.
- 26–9 AWG range: supports multiple power, control and internal connection requirements.
- Colour options: black, white, red, yellow, green, blue, brown, grey, orange or violet.
Construction and electrical ratings
| Parameter | Documented value |
|---|---|
| Product model | HTW-XLPE-XLPO-125C-600V |
| Product type | Single-core high-temperature hook-up wire |
| Rated temperature | 125°C |
| Rated voltage | 600 V |
| Conductor | Solid or stranded bare/tinned copper |
| Conductor range | 26 AWG to 9 AWG |
| Insulation options | XLPE or XLPO |
| Installation | Fixed installation |
| Reference minimum bend radius | 10 × finished wire diameter |
| Available colours | Black, white, red, yellow, green, blue, brown, grey, orange or violet |
Available sizes
The following documented dimensions support initial engineering and purchasing review. Confirm the conductor form, finished diameter and required insulation material before ordering.
| AWG | Conductor diameter | Insulation thickness | Approx. overall diameter | Max. conductor resistance at 20°C |
|---|---|---|---|---|
| 26 | 0.5 mm | 0.76 mm | 2.10 ± 0.15 mm | 150.00 Ω/km |
| 24 | 0.6 mm | 0.76 mm | 2.20 ± 0.15 mm | 94.20 Ω/km |
| 22 | 0.8 mm | 0.76 mm | 2.40 ± 0.15 mm | 59.40 Ω/km |
| 20 | 0.9 mm | 0.76 mm | 2.60 ± 0.15 mm | 36.70 Ω/km |
| 18 | 1.2 mm | 0.76 mm | 2.80 ± 0.15 mm | 23.20 Ω/km |
| 16 | 1.5 mm | 0.76 mm | 3.10 ± 0.15 mm | 14.60 Ω/km |
| 14 | 1.9 mm | 0.76 mm | 3.50 ± 0.15 mm | 8.960 Ω/km |
| 12 | 2.4 mm | 0.76 mm | 4.00 ± 0.20 mm | 5.640 Ω/km |
| 10 | 3.0 mm | 0.76 mm | 4.70 ± 0.20 mm | 3.546 Ω/km |
| 9 | 3.3 mm | 0.76 mm | 5.00 ± 0.20 mm | 2.813 Ω/km |
XLPE or XLPO: what should be specified?
Both insulation options are available within this product family. Specify XLPE when the project drawing or equipment specification calls for cross-linked polyethylene, and specify XLPO when a cross-linked polyolefin construction is required. Do not treat the material name alone as proof of a particular flame, oil, chemical or environmental performance; provide the required test conditions so the final construction can be confirmed.
Typical applications
- Appliance and electrical equipment internal wiring
- Inverter and power-conversion equipment connections
- Energy storage battery pack internal connections
- Protected control cabinet and panel wiring
- Power supply and charging equipment assemblies
- OEM electrical systems requiring 125°C, 600V single-core wire
Application suitability depends on conductor current, voltage drop, terminal system, local temperature, routing, bend requirements and mechanical protection.
How to specify the correct hook-up wire
- Select the AWG size: use current, voltage drop, terminal capacity and routing space to determine the conductor size.
- Choose the conductor: state solid or stranded construction and bare or tinned copper.
- Choose the insulation: specify XLPE or XLPO according to the equipment requirement.
- Confirm installation: provide temperature, fixed routing, bend space and any external exposure.
- Define supply details: include colour, printing, length, quantity and packaging.
Usage limits and engineering review
The listed 125°C and 600 V values are product ratings, not approval of a complete machine, battery system or installation. Do not assume suitability for direct burial, continuous flexing, outdoor exposure, immersion, unprotected abrasion or a specific flame, oil or chemical test unless those conditions have been separately reviewed and confirmed.
Related XLPE wire options
For a 125°C, 300 V XLPE construction, compare the UL 3266 XLPE high-temperature wire. For a 105°C, 600 V option, review the UL 3287 XLPE high-temperature wire. Browse the complete high-temperature and specialty cable range.
Frequently asked questions
What are the voltage and temperature ratings?
The documented product ratings are 600 V and 125°C.
What conductor sizes are available?
The documented range is 26 AWG to 9 AWG. Confirm the selected conductor form and finished diameter before ordering.
Can I choose XLPE or XLPO insulation?
Yes. XLPE and XLPO are both available insulation options. State the required material and any project-specific test requirements in the enquiry.
Is bare or tinned copper available?
Yes. Solid or stranded bare/tinned copper configurations are documented. Selection should match the terminal and assembly process.
Is this wire suitable for continuous movement or outdoor installation?
The documented installation is fixed and protected. Continuous movement, outdoor exposure, direct burial and immersion require separate evaluation and should not be assumed from the temperature and voltage ratings.

















