UL3963 High-Temperature Silicone Rubber (SR) Wire | 200°C 600V AC
The UL3963 Silicone Rubber (SR) Hook-Up Wire is a premier internal wiring solution engineered for extreme thermal environments and versatile power requirements. Boasting a high-temperature rating of 200°C and a 600V AC voltage capacity, this wire provides the ultimate flexibility and durability for modern appliance and industrial manufacturing.
Product Specifications
| Feature | Details |
| Model | UL3963 SR Insulation Wire |
| Rated Temperature | 200°C |
| Rated Voltage | 600V AC |
| Conductor Range | 50 AWG to 4/0 AWG |
| Conductor Material | Solid or Stranded; Tinned or Bare Copper |
| Insulation Material | High-Grade Silicone Rubber (SR) |
| Flame Test | Passes FT2 Horizontal Flame Test |
| Standard Compliance | UL Subject 758, UL1581, RoHS |
Key Performance & Design Advantages
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Elite Thermal Ceiling (200°C): Designed to operate reliably where standard wires fail. The UL3963 maintains its mechanical integrity and electrical insulation properties even under continuous exposure to extreme heat.
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Unrivaled Gauge Range (50 AWG – 4/0 AWG): We provide a comprehensive range of sizes, from ultra-fine 50 AWG for precision instrumentation to heavy-duty 4/0 AWG for high-current industrial power distribution.
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Certified Oil Resistance: Perfect for the internal wiring of appliances where the cable may be exposed to oil. The silicone rubber insulation is specially formulated to resist degradation and swelling in oily environments.
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Precision Manufacturing: Features a uniform insulation thickness, ensuring consistent dielectric protection and allowing for effortless stripping and cutting. This precision significantly reduces setup time and material waste in automated assembly lines.
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High Flexibility: Silicone rubber (SR) offers superior flexibility compared to Teflon or PVC, allowing for easy routing in tight, complex enclosures without cracking or stress-whitening.
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Compliance & Safety: Fully compliant with UL758 and UL1581 standards. It has passed the FT2 Horizontal Flame Test, ensuring enhanced safety for consumer and industrial electronics.
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Environmentally Sustainable: All materials are RoHS compliant, meeting international environmental standards for the restriction of hazardous substances.
Typical Applications
The UL3963 SR wire is the professional choice for:
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Precision Electronics: The 50 AWG size is ideal for micro-sensors and medical devices used in high-heat zones.
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Commercial Kitchen Equipment: Internal wiring for high-end ovens, grills, and commercial dishwashers.
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Industrial Power: Motor leads, transformers, and heating elements where oil and heat exposure are constant factors.
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Automotive & HVAC: High-temperature sensors and control wiring in engine compartments or heating units.
Why Choose Our UL3963 Wire?
Our UL3963 series is designed for mission-critical reliability. Whether you require tinned copper for maximum corrosion resistance or stranded conductors for high-vibration environments, our silicone rubber insulation provides the high-performance barrier your products deserve.
