When your project demands higher voltage rating than standard UL1015 (600V) or UL1007 (300V) , the UL10269 electronic wire steps in. This single-core, PVC-insulated hook-up wire is rated for 1000V and carries VW-1 flame retardancy, making it the go-to choice for internal high-voltage wiring in photovoltaic systems, energy storage equipment, and industrial machinery.
This guide covers everything you need to know about UL10269 — construction, key features, typical applications, and how it compares to other UL styles.
What Is UL10269 Electronic Wire?
UL10269 is a single-conductor PVC hook-up wire listed under UL 758 (Appliance Wiring Material, AWM). Its defining characteristics:
- Rated voltage: 1000V — significantly higher than UL1007 (300V) and UL1015 (600V)
- Insulation: Flame-retardant PVC (polyvinyl chloride), with an optional oil-resistant formulation
- Conductor: Bare or tinned copper, solid or stranded
- Temperature rating: Typically 80°C or 105°C (depending on PVC grade)
- Flame rating: VW-1 (vertical flame test, self-extinguishing)
- Size range: 26 AWG to 4/0 AWG (covering signal-level to high-current power)
The thicker insulation wall compared to UL1015 provides the extra dielectric strength needed for 1000V DC/AC applications, while maintaining the easy stripping and termination properties of PVC.
Construction & Materials
|
Component
|
Description
|
|---|---|
|
Conductor
|
Bare copper or tinned copper (recommended for oxidation resistance in humid environments). Solid or stranded (Class 2/3/5). Size: 26 AWG – 4/0 AWG.
|
|
Insulation
|
Flame-retardant PVC — two formulations available:
• Standard PVC: General purpose, 80°C or 105°C • Oil-resistant PVC: Special compound that resists swelling and degradation in contact with lubricants, cutting fluids, and hydraulic oils |
|
Color
|
Full range: Red, Black, Yellow, Green, Blue, White, Orange, Gray, Violet — easy circuit identification
|
Key Product Features
1. 1000V High Voltage Rating
The standout feature of UL10269 is its 1000V rating — nearly double that of UL1015 (600V) and triple that of UL1007 (300V). This makes it suitable for:
- DC bus lines in battery energy storage systems (ESS) operating at 800V–1000V DC
- Photovoltaic inverter internal circuits where string voltages reach 1000V
- Industrial control panels with 480V–600V AC systems (providing ample safety margin)
2. Oil-Resistant Option Available
Standard PVC wire swells, softens, and cracks when exposed to mineral oils, cutting fluids, or hydraulic oils. UL10269 offers a special oil-resistant PVC formulation that passes UL’s oil immersion tests. This version is essential for:
- CNC machine tool internal wiring
- Hydraulic press and injection molding machine control panels
- Gearboxes and transmission housings
3. VW-1 Flame Retardancy
UL10269 is rated VW-1 (Vertical Wire Flame Test), meaning it self-extinguishes within 60 seconds after the ignition source is removed and does not drip flaming particles. This is critical for:
- Enclosed equipment where fire must not spread
- Compliance with UL 508A industrial control panel standards
- Meeting NEC and CEC requirements for appliance wiring
4. Low Eccentricity Insulation
The insulation is extruded with tight concentricity control, ensuring uniform wall thickness around the conductor. This eliminates localized electric field concentration that could lead to partial discharge or breakdown under sustained high voltage.
5. Easy Processing & Eco-Friendly
PVC insulation strips cleanly and quickly with standard wire strippers — no special tools required. The material is halogen-free and low-smoke (depending on grade), supporting export compliance with RoHS and REACH regulations.
Typical Applications
1. Energy Storage Systems (Most Common Use)
- Internal wiring of battery clusters and battery modules
- Connections inside PCS (Power Conversion System), combiner boxes, and high-voltage control cabinets
- Bus bar, fuse, and relay high-voltage terminations
2. Photovoltaic Systems
- DC high-voltage circuits inside solar inverters
- Power board wiring in PV inverters and hybrid inverters
- Internal wiring of solar-plus-storage all-in-one units
3. Industrial Equipment
- CNC machine tools and hydraulic presses (use oil-resistant version)
- Variable frequency drives (VFDs), servo drives, and high-voltage control cabinets
- Large industrial power supplies and high-voltage test equipment
4. New Energy Vehicles & High-Power Appliances
- Onboard high-voltage control boxes and charger internal wiring (mixed low/high voltage)
- Large welding machines and UPS (Uninterruptible Power Supply) main internal circuits
5. General Electrical Appliances
Any internal high-voltage circuit in household or commercial appliances, especially those with light oil mist exposure.
UL10269 vs Other Common UL Styles
|
Parameter
|
UL10269
|
UL1015
|
UL1007
|
|---|---|---|---|
|
Voltage Rating
|
1000V
|
600V
|
300V
|
|
Temperature
|
80°C / 105°C
|
105°C
|
80°C
|
|
Flame Rating
|
VW-1
|
VW-1
|
VW-1
|
|
Insulation Thickness
|
Thick (for 1000V)
|
Medium
|
Thin
|
|
Oil-Resistant Option
|
✅ Yes
|
❌ No
|
❌ No
|
|
Typical Use
|
ESS, solar, industrial HV
|
General appliance wiring
|
Low-voltage signal
|
Frequently Asked Questions
Q: Can UL10269 replace UL1015 in a 600V circuit?
A: Yes — UL10269 is fully backward-compatible with 600V circuits. The thicker insulation provides extra safety margin, though the cost is slightly higher. Use UL10269 when future voltage upgrades are anticipated.
Q: Is the oil-resistant version marked differently?
A: Yes. The oil-resistant variant is typically labeled as “UL10269 OIL RES” or similar on the cable jacket. Always verify with the manufacturer’s datasheet.
Q: What is the maximum operating temperature for UL10269?
A: Standard PVC grade: 80°C. Heat-resistant PVC grade: 105°C. Check the specific UL listing on the reel.
Q: Can UL10269 be used outdoors?
A: Standard PVC is not UV-stable for long-term outdoor exposure. For outdoor use, protect with conduit or select a UV-resistant cable type. The oil-resistant version offers slightly better weathering but is still not recommended for direct sunlight.
Q: Is UL10269 suitable for battery internal wiring in EVs?
A: For low-voltage auxiliary circuits (≤1000V), yes. However, for main traction battery pack internal wiring where temperatures may exceed 105°C and fire safety is paramount, silicone or cross-linked insulation is often preferred. Consult your system designer.
Why Choose JZD Cable for UL10269 Electronic Wire?
At JZD Cable, we manufacture UL10269 electronic wire to the highest standards:
- Conductor: Bare or tinned copper, solid or stranded, 26 AWG to 4/0 AWG
- Insulation: Standard PVC (80°C/105°C) or oil-resistant PVC
- Flame Rating: VW-1
- Voltage: 1000V
- Colors: Full range — Red, Black, Yellow, Green, Blue, White, Orange, Gray, Violet
- Certifications: UL 758, RoHS, REACH
Available in bulk spools or custom-cut lengths. We serve OEMs, distributors, and project contractors worldwide.
Need a quote or technical datasheet?
Contact our team at jzdcable.com/contact — specify gauge, quantity, oil-resistance requirement, and color preferences.
