Core Value
The 300C Silicone Fiberglass Braided High Temperature Wire Cable is engineered for superior power transmission and signal integrity in demanding high-heat industrial environments. Built with a fine-stranded tinned or nickel-plated copper conductor encased in a high-dielectric silicone rubber insulation core, it is finished with a outer high-density fiberglass braid coated with heat-resistant resin. This multi-layer construction delivers exceptional flexibility, preventing conductor fatigue and insulation cracking during tight installation routing or continuous mechanical flexure.
Operating continuously at temperatures up to 300°C (572°F) and rated for 300V/600V AC, it provides complete resistance to humidity, oil mist, chemical splatter, and thermal degradation. Ideal for high-wattage industrial heaters, motor leads, ovens, and plastic processing equipment, it prevents electrical short-circuits and grounding failures in compact wiring spaces. BACKED BY 30+ YEARS MANUFACTURING EXPERIENCE and UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS for ultimate long-term operational safety.
- ✓ Extreme Temperature Resistance: Continuous operating rating up to 300°C (572°F) without insulation hardening or embrittlement.
- ✓ Flexible Multi-Strand Conductor: High-purity tinned/nickel-plated copper strands provide low resistance and high flexural life.
- ✓ Dual Layer Insulation Protection: Silicone inner core provides high dielectric strength, while the outer fiberglass braid guards against mechanical abrasion.
- ✓ Moisture & Chemical Resilience: Resists water, oil spray, industrial solvents, and chemical vapors in harsh factory environments.
- ✓ Flame Retardant Outer Jacket: High-density fiberglass braid will not support flame or drip molten plastic under severe overload conditions.
- ✓ Wide Range of AWG Sizes: Available from AWG 26 to AWG 2/0 (0.2 mm² to 70 mm²) to suit control signals and high-power leads.
- ✓ Reliable Quality: 30+ YEARS MANUFACTURING EXPERIENCE guarantees precise wire drawing and uniform braid density.
- ✓ Quality Assured: UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS including high-voltage spark testing and conductor resistance checks.
- ✓ Global Compliance: CE, UL, RoHS, and ISO 9001 certified.
Technical Specifications & Performance Data
| Parameter | Standard Value | Customizable Range | Notes |
| Conductor Material | Tinned Copper / Nickel-Plated Copper | Pure Nickel Wire / Silver-Plated Copper | High conductivity & anti-oxidation under heat |
| Insulation Core | High-Grade Silicone Rubber | High-Temp Fluoropolymer / Silicone | High dielectric breakdown strength |
| Outer Braid Material | Fiberglass Braid + Silicone Coating | Kevlar / Stainless Steel Overbraid | High abrasion & heat resistance |
| Voltage Rating | 300V / 600V AC | Custom High-Voltage Insulation | Compliant with industrial safety standards |
| Working Temperature | -60°C to +300°C (-76°F to +572°F) | Peak exposure up to 350°C | Outstanding cold flexibility & heat endurance |
| Wire Gauge Range | AWG 24 – AWG 4 (0.2 mm² – 25 mm²) | Up to AWG 2/0 heavy power cables | Stranded conductor for high flexibility |
| Color Options | White, Black, Red, Yellow, Blue, Brown | Custom Color-Coding / Striping | Easy circuit identification in junction boxes |
| Flammability Rating | UL VW-1 / FT1 Flame Retardant | Self-extinguishing | Non-flammable fiberglass outer shield |
| Warranty | 1 Year Standard | Extended coverage available | Guaranteed against manufacturing defects |
Industrial Applications & Solutions
- Wire Stripping: Use specialized wire strippers designed for braided high-temperature cables to cut cleanly through outer fiberglass and silicone insulation without nicking inner copper strands.
- Terminal Crimp Inspection: When crimping high-temperature nickel or tinned copper lugs, ensure a tight mechanical compression fit to maintain low contact resistance and prevent joint heating.
- Braid Edge Sealing: If stripping long sections, apply heat-shrink tubing or ceramic sleeving over exposed braid edges to prevent fraying inside junction boxes.
- Routing & Bending Radius: Maintain a minimum bend radius of at least 5 times the cable outer diameter to prevent over-stretching the fiberglass outer jacket.
- Avoid Direct Flame Contact: While rated for continuous 300°C ambient heat, route wire away from direct burner flames or raw heating wire surfaces.
HT-Heater vs Standard Market High-Temp Wires
| Feature | HT-Heater 300C Wire | Standard Market Wire | Your Advantage |
| Braid Density & Coating | High-Density Glass Fiber + Resin Seal | Loose Fiberglass / Uncoated Braid | Won’t fray, shed glass dust, or absorb oil mist |
| Conductor Quality | Tinned / Nickel-Plated Pure Copper | Low-Grade Recycled / Unplated Wire | Low electrical resistance, zero terminal oxidation |
| Thermal & Flex Life | Remains highly flexible at 300°C | Becomes brittle & cracks above 180°C | Long operational life in high-vibration machinery |
| Dielectric Integrity | High Spark Test Voltage Rating (> 6kV) | Thin Insulation / Frequency Breakdown | Zero short circuits or current leakage risks |
| Manufacturing Exp. | 30+ YEARS EXPERIENCE | Unverified Workshops | Consistent outer diameter and uniform conductor resistance |
| Quality Assurance | MULTIPLE RIGOROUS QUALITY CHECKS | Basic Visual Check Only | ZERO DEFECT DELIVERY |
Installation & Integration Guidelines
- Calculated Coil Pitch: When coiling FeCrAl wire into spiral furnace elements, ensure a coil pitch of 2 to 3 times the wire diameter to prevent adjacent turns from touching and short-circuiting.
- Cold Winding Precaution: Ensure FeCrAl wire is at room temperature (above 15°C) before bending or coiling. Very thick wire gauges (> 6 mm) should be pre-warmed slightly to prevent brittleness during sharp bending.
- Pre-Oxidation Burn-In: Before subjecting new heating elements to full industrial loads, perform an initial pre-oxidation bake-out in air at 1050°C for 2 hours to form a complete Al₂O₃ protective skin.
- Avoid Atmosphere Contamination: Ensure furnace interiors are free from sulfur, chlorine, and heavy carbon soot, as active reducing agents can attack the alumina oxide layer.
- Terminal Connection: Secure wire ends with heavy-duty mechanical screw clamps or nickel busbar leads. Avoid soft soldering or low-temp brazing near the active heat zone.
Customer Success Stories
Case 1:
Industrial Oven Manufacturer (Germany)
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Application: Main internal wiring for high-temperature commercial convection baking ovens.
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Challenge: Previous PVC and thin fiberglass wires dried out, became brittle, and cracked after 6 months of oven operation.
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Solution: 300C Silicone Fiberglass Braided High Temperature Wire Cable (AWG 12 & 14).
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Results: WIRING FAILURE RATE REDUCED TO 0%. “The wire stays remarkably flexible even after hundreds of thermal cycles at 280°C. HT-Heater UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS, and product quality is outstanding.”
Case 2:
Plastics Extrusion OEM (Brazil)
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Application: Barrel heating power lead routing inside tight metal wire troughs.
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Challenge: Oil mist and high ambient heat degraded standard silicone wire insulation, leading to grounding trips.
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Solution: 300C Silicone Fiberglass Braided Wire with resin-sealed outer jacket.
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Results: UNSCHEDULED DOWNTIME REDUCED BY 90%. “30+ YEARS MANUFACTURING EXPERIENCE shows in their cabling insulation. The fiberglass outer braid resists oil and mechanical rubbing inside wire troughs.”
Pricing & Procurement Options
- Standard Production: MOQ 100 meters per gauge/color. BACKED BY 30+ YEARS MANUFACTURING EXPERIENCE ensuring exact spooling and wire diameter uniformity. Tiered volume discounts for 1,000+ meter orders.
- Lead Times: Standard Stock Gauges (AWG 20 to AWG 8 in White/Black): In stock, 3-5 days. Custom Color Coding, Special Stranding, or Large Gauges: 7-10 days. Express air shipping.
- Global Logistics: Supplied on standard 100m/200m spools or heavy wooden reels. Packed in moisture-proof wrap and sturdy export cartons.
- Sample Orders: Free sample wire lengths available upon request for resistance and flex testing. Every shipment UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS prior to dispatch.
Global Certifications & Compliance
- CE Marking
Fully compliant with European safety and environmental standards. - LVD Compliance
Low Voltage Directive tested for continuous thermal load safety. - RoHS Compliant
Constructed using environmentally safe, lead-controlled brass alloys. - ISO 9001
Certified quality control covering CNC machining, coil pressing, and electrical testing.
Quality Documentation: Certificate of Conformity (COC) and insulation resistance test reports included.
Comprehensive After-Sales Support
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- Warranty: 1-Year Comprehensive Warranty covering internal heating element and built-in sensor.
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Technical Support: Application engineers available for wattage distribution calculation, thermocouple calibration, and nozzle fitting assistance.
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Global Response Network: BACKED BY 30+ YEARS MANUFACTURING EXPERIENCE with technical inquiry feedback within 2 hours.
Ready to Optimize Your Injection Molding?
Next Steps:
- 📧 Request Custom Quote – Send your nozzle dimensions, wattage, voltage, and HT-CLW-450 drawing requirements.
- 🔧 Free Design Consultation – Work with our thermal engineers to optimize heat distribution and lead insulation.
- 📦 Order Test Samples – Evaluate thermal performance on your injection molding machine.
- 📞 Contact Hot Runner Experts – Response within 2 hours
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