What Is the Difference Between UL1015 and UL1007 Wire?
When working with electrical wiring, choosing the correct wire is critical for safety, performance, and compliance. Two of the most common UL-certified hookup wires are UL1015 and UL1007.
At first glance, they look similar — both are PVC-insulated and UL-approved — but their differences in voltage rating, insulation thickness, and temperature limits make them suitable for very different applications.
1. Introduction
In simple terms:
UL1015 is rated for higher voltage (600V) and has thicker insulation, making it ideal for industrial and power applications.
UL1007 is rated for lower voltage (300V) and has thinner insulation, giving it greater flexibility for small electronic devices.
Understanding these differences helps engineers, manufacturers, and buyers choose the right wire for their specific environments and safety requirements.
2. Certification & Compliance
Both UL1015 and UL1007 are certified under UL 758 – Appliance Wiring Material (AWM), meaning they meet strict standards for insulation quality, flame resistance, and electrical performance.
Certification UL1015 UL1007 UL Standard UL 758 UL 758 CSA Compliance (Canada) No CSA FT1 Flame Resistance VW-1 (Vertical Wire Flame Test) VW-1 Key Takeaways
✅ Both wires pass the VW-1 flame test, ensuring strong fire resistance. ✅ UL1007 also meets CSA FT1 requirements, making it more suitable for Canadian applications.
3. Specification Comparison
Specification UL1015 UL1007
Voltage Rating 600V 300V
Temperature Rating -40°C to 105°C -40°C to 80°C
Conductor Material Stranded or solid tinned copper Stranded or solid tinned copper
Insulation Material PVC (thicker insulation) PVC (thinner insulation)
Wire Gauge Range 10–30 AWG 16–30 AWG
Key Takeaways
✅ UL1015 handles twice the voltage (600V vs. 300V) — best for power and control circuits. ✅ UL1007 is thinner and more flexible, perfect for confined electronic spaces. ✅ UL1015 withstands higher temperatures (up to 105°C).
4. Key Features & Differences
UL1015 – Heavy-Duty, Industrial Wire
✔ 600V rating for industrial power, machinery, and HVAC control systems ✔ Thicker PVC insulation for better mechanical and heat protection ✔ Common in control panels, appliances, and automotive harnesses
UL1007 – Lightweight, Flexible Wire
✔ 300V rating ideal for electronics and appliance wiring ✔ Thinner PVC insulation for improved flexibility and easy routing ✔ Common in LED lighting, circuit boards, and small consumer devices
5. Application Scenarios
Where Is UL1015 Used?
✅ Industrial equipment and control panels ✅ Power supplies and HVAC systems ✅ Automotive and marine wiring ✅ Heavy-duty machinery and factory automation
Where Is UL1007 Used?
✅ Internal wiring in computers, TVs, and electronics ✅ LED lighting systems and low-voltage circuits ✅ Consumer electronics like chargers and power adapters ✅ Printed circuit board (PCB) wiring and small appliances
6. Market Demand & Manufacturer Preferences
Market Segment UL1015 Preferred By UL1007 Preferred By
Industrial Manufacturing Siemens, ABB, Schneider Electric Panasonic, Sony, Samsung
Power Distribution & Control Panels Electrical equipment OEMs Low-voltage assemblies
Electronics & Consumer Goods Limited use PCB, LED, and device wiring
Key Takeaways
✅ UL1015 dominates industrial and commercial power sectors. ✅ UL1007 remains the standard for electronics, PCB assembly, and consumer devices.
7. Conclusion
Which One Should You Choose?
If You Need… Choose This Wire
High voltage (600V) for industrial use UL1015
Low voltage (300V) for electronics UL1007
Thicker insulation for extra protection UL1015
Flexible, lightweight wire UL1007
High-temperature resistance (up to 105°C) UL1015
In summary, UL1015 is the durable choice for power and industrial wiring, while UL1007 is the flexible, efficient option for compact electronics. Both meet UL’s safety standards — the right choice depends on your voltage, temperature, and space requirements.
Need UL-certified hookup wire? We stock both UL1015 and UL1007 in multiple colors, gauges, and spool sizes. Contact us today for fast quotes, cut lengths, and technical support.
