UL 1331 Code Summary:
UL 1331 refers to a single conductor with extruded insulation, commonly used for internal wiring of appliances. It is rated for 150°C and 600V AC, with optional oil and gasoline resistance at 60°C or 80°C. The conductor can range from 30 AWG to 4/0 AWG, either solid or stranded, and is insulated with extruded FEP. The wiring is tested for flame resistance and may include optional coverings.
Specifications:
- Rating: 150°C, 600V AC
- Conductor: 30 AWG - 4/0 AWG, solid/stranded/Litz cable
- Insulation: Extruded FEP
- Thickness:
- 30-10 AWG: 20 mils (avg), 18 mils (min)
- 8-2 AWG: 30 mils (avg), 27 mils (min)
- 1-4/0 AWG: 45 mils (avg), 40 mils (min)
- Optional Covering: Extruded FEP (2 mils) or glass braid (7 mils)
- Usage: Internal appliance wiring
- Standard: UL 758
See more information about UL Style 1331 here.
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*Disclaimer: This article is provided for informational purposes only and is not installation advice. Installing wire & cable can be dangerous and pose a risk of possible electric shock or other hazards. Consult a licensed professional for installation advice. Images are for illustration purposes and may not reflect actual installed products.