Product Overview
UL 3122 compliant silicone rubber insulated wires provide exceptional thermal stability for internal wiring applications requiring continuous operation up to 200°C. Featuring tinned copper conductors and halogen-free construction, these wires maintain flexibility while ensuring safety in high-temperature environments.
Key Advantages vs. Standard Wires
| Parameter | UL 3122 Silicone Wire | Standard PVC Wire |
|---|---|---|
| Max. Temp | 200°C continuous | 105°C |
| Cold Flexibility | -65°C | -20°C |
| Flame Performance | Self-extinguishing (UL VW-1) | Limited resistance |
| Chemical Resistance | Acid/alkali/oil resistant | Vulnerable |
| Lifetime | 20,000+ hrs at 200°C | 10,000 hrs at 105°C |
Construction Details
Cross-Section Diagram:
Conductor: Tinned Copper Strands (IEC 60228 Class 5/6)
Insulation: High-Temperature Silicone Rubber
Technical Specifications
| Parameter | Specification | Standard |
|---|---|---|
| Rated Voltage | 300V/600V AC | UL 3122 |
| Temp Range | -65°C to +200°C | UL 1581 |
| Conductor | Tinned copper (IEC 60228) | - |
| Flame Test | VW-1 (Vertical) | UL 2556 |
| Insulation Resistance | >100 MΩ·km @20°C | IEC 60811 |
Current Ratings (200°C Ambient):
| Cross-section (mm²) | Ampacity | Max. DC Resistance (Ω/km) |
|---|---|---|
| 0.5 | 7A | 40.1 |
| 1.0 | 12A | 20.0 |
| 1.5 | 16A | 13.7 |
| 2.5 | 22A | 8.21 |
| 4.0 | 30A | 5.09 |
| 6.0 | 38A | 3.39 |
| 10 | 52A | 1.95 |
| 16 | 70A | 1.24 |
| 25 | 90A | 0.795 |
Application Scenarios
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Industrial Heating: Ovens, furnaces, thermal processing
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Lighting Systems: High-intensity fixture wiring
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Power Equipment: Switchboards, transformer connections
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Specialty Machinery: Textile, paper, wood processing
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Transportation: Engine compartment wiring
Standards & Certifications
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Compliance: UL 3122, IEC 60851, GB/T 5013.8
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Certifications: UL File E123456, RoHS, REACH
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Test Reports: Available upon request
Installation Guidelines
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Bending Radius: Min. 4× cable diameter
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Termination: Use ceramic or high-temp connectors
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Separation: Avoid contact with oils/solvents without protection
-
Fixed Installation Only: Not for continuous flexing applications
Warning: Derate current by 15% in enclosed conduits
Ordering Information
Product Code:
UL3122-[Size]mm²-[Color]-[Length]m
*Example: UL3122-1.5mm²-Red-100m*
Standard Options:
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Sizes: 0.1mm² to 25mm²
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Colors: Red/Blue/Yellow/Black/White/Green/Yellow-Green
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Packaging: 100m rolls or cut lengths
Technical Revisions
-
Temperature Rating: Corrected to 200°C continuous (not 250°C)
-
Voltage Rating: Standardized to UL 3122 300V/600V
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Conductor Class: Specified IEC 60228 Class 5/6
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Flame Rating: Added UL VW-1 certification requirement
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Applications: Clarified fixed installation only
Complies with UL 3122 for internal wiring. Not for power transmission applications.