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

Key Performance & Design Advantages

• 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.

• 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.

• 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.

• 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.

• 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.

• 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.

• 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:

• Precision Electronics: The 50 AWG size is ideal for micro-sensors and medical devices used in high-heat zones.

• Commercial Kitchen Equipment: Internal wiring for high-end ovens, grills, and commercial dishwashers.

• Industrial Power: Motor leads, transformers, and heating elements where oil and heat exposure are constant factors.

• 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.