UL 3135 Certified Silicone Wire | 200°C High-Temp Flexible Cable with Fiberglass Braid Option

Silicone Rubber Insulated Cables High Temperature Cables29
Description

Product Overview

UL 3135 silicone wire delivers extreme thermal resilience (-60°C to +200°C) and moisture resistance for harsh industrial environments. Available in braided (fiberglass-reinforced) and non-braided configurations, this flexible cable features tinned copper conductors and silicone insulation, making it ideal for high-temperature applications in petrochemical, aviation, and power generation sectors.

Technical Specifications

Parameter Specification
Standard UL 3135
Voltage Rating 600V AC
Temp Range -60°C to +200°C (Continuous)
Conductor Tinned Copper (99.99% electrolytic)
Insulation Silicone Rubber
Braid Option Fiberglass + Silicone Impregnation
Min. Bend Radius 16× Cable Ø
Flame Rating UL VW-1
Water Resistance IP68 (Long-term humid environments)
Color Options White/Blue/Red/Black/Brown/Green/Yellow-Green

Non-Braided Version

UL 3135 Certified Silicone Wire | 200°C High-Temp Flexible Cable with Fiberglass Braid Option-Picture1

AWG Stranding Cond. Ø (mm) Insul. Thk (mm) OD (mm) Rdc (Ω/km) Length (m)
26 7/0.18 0.55 0.762 2.07 139.00 305
24 7/0.20 0.61 0.762 2.13 88.90 305
20 7/0.32 0.98 0.762 2.50 35.20 305
18 7/0.39 1.19 0.762 2.71 23.30 305
14 40/0.26 1.90 0.762 3.42 9.20 305
12 45/0.32 2.48 0.762 4.00 5.40 200

Braided Version (UL3135 Plus Knitting)

UL 3135 Certified Silicone Wire | 200°C High-Temp Flexible Cable with Fiberglass Braid Option-Picture2

AWG Stranding Cond. Ø (mm) Insul. Thk (mm) Braid Thk (mm) OD (mm) Rdc (Ω/km) Length (m)
26 7/0.18 0.55 0.762 0.30 2.35 139.00 305
24 7/0.20 0.61 0.762 0.30 2.45 88.90 305
20 7/0.32 0.98 0.762 0.30 2.85 35.20 305
18 7/0.39 1.19 0.762 0.30 3.00 23.30 305
14 40/0.26 1.90 0.762 0.30 3.72 9.20 305
12 45/0.32 2.48 0.762 0.30 4.30 5.40 305

Construction Details

1. Conductor

  • Material: Electrolytic copper (Cu ≥99.99%)

  • Plating: Tin-coated (min. 3μm thickness)

  • Stranding: Optimized for flexibility (7-45 strands)

  • Compliance: UL 1581 Section 20

2. Insulation

  • Material: High-purity silicone rubber

  • Thickness: 0.762mm (uniform across sizes)

  • Properties: Retains elasticity at -60°C

3. Braiding (Optional)

  • Material: E-glass fiber + silicone resin

  • Thickness: 0.30mm

  • Coverage: >90% surface protection

  • Function: Enhanced abrasion/tear resistance

Material Properties

Component Key Characteristics
Silicone Hydrolysis-resistant, UL94 V-0 rated
Tinned Copper Corrosion resistance in humid environments
Fiberglass Tensile strength ≥1,500 MPa (braided version)

Application Scenarios

High-Temperature Industrial

  • Steel mill furnace sensor wiring

  • Power plant turbine control systems

  • Petrochemical reactor instrumentation

Mobile Equipment

  • Aviation ground support vehicles

  • Mining drill rig electrification

  • Ship engine room systems

Specialized Environments

  • Food processing sterilization tunnels

  • Pharmaceutical autoclave controls

  • Semiconductor manufacturing equipment

Electrical Heating

  • Industrial oven internal wiring

  • Plastic extrusion heaters

  • Laboratory heating elements

Engineering Selection Guide

Factor Calculation Method Critical Values
Current Rating UL 1581 Table 20.1 18AWG: 10A @200°C
Voltage Drop ΔU = (I × L × 2)/(κ × S) Max 3% @ full load
Bending Life UL 1581 Section 360 (Flex Test) >30,000 cycles @ 16×Ø
Thermal Aging UL 2556 7-day @ 200°C + 40% elongation

⚠️ Installation Requirements
• Bend Radius: Minimum 16× cable OD
• Humid Environments: Requires IP68 glands for submerged applications
• Temperature: Derate current by 0.5%/°C above 200°C

Compliance & Certifications

• Primary Standard: UL 3135
• Fire Safety: UL VW-1 (Vertical Flame Test)
• Environmental: RoHS 3 · REACH SVHC-free
• Material Compliance:

  • UL 746C (Silicone)

  • ASTM D578 (Fiberglass)

Configuration Comparison

Feature Braided Version Non-Braided Version
Abrasion Res. Excellent (ISO 6722) Good
Chemical Res. Acids/Oils (pH 2-12) Mild chemicals (pH 4-10)
EMI Protection 20-35dB attenuation None
Outdoor Use Recommended Limited
Cost +25-30% Standard

Note: Braided version required for moving applications in abrasive environments