Product Overview
The SiHF-J Flexible High-Temperature Cable delivers exceptional thermal resilience for extreme industrial environments. Featuring Class 5 tinned copper conductors and dual-layer silicone construction, it maintains flexibility from -60°C to +180°C while resisting oils, acids, and lyes. Engineered for fixed installations in steelworks, chemical plants, and low-temperature applications where mechanical stress is minimal.
Construction
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Conductor:
Class 5 fine-stranded tinned copper (IEC 60228 compliant) for maximum flexibility and oxidation resistance. -
Insulation:
High-grade silicone rubber (SiR) ensuring electrical integrity at extreme temperatures. -
Outer Sheath:
Reinforced silicone rubber providing chemical/abrasion resistance.
Key Specifications
| Parameter | Specification |
|---|---|
| Voltage Rating | 300/500V (Uo/U) |
| Temp Range | -60°C to +180°C (fixed) |
| Bending Radius | Fixed: 5× diameter Flexed: 15× diameter |
| Chemical Resistance | Oils, acids, lyes, oxidants |
| Conductor Class | 5 (IEC 60228) |
Technical Data Table
| Cores | Cross-Section (mm²) | Overall Ø (mm) | Weight (kg/km) |
|---|---|---|---|
| 3 | 0.75 | 6.8 | 66 |
| 3 | 1.0 | 7.4 | 78 |
| 3 | 1.5 | 8.0 | 98 |
| 3 | 2.5 | 9.7 | 152 |
| 3 | 4.0 | 11.5 | 249 |
| 3 | 6.0 | 14.2 | 352 |
| 4 | 0.75 | 7.8 | 84 |
| 4 | 1.0 | 8.0 | 95 |
| 4 | 1.5 | 8.8 | 122 |
| 4 | 2.5 | 10.6 | 189 |
| 4 | 4.0 | 13.0 | 330 |
| 4 | 6.0 | 16.2 | 429 |
| 4 | 10.0 | 21.4 | 710 |
| 4 | 16.0 | 24.0 | 1,014 |
| 4 | 25.0 | 29.3 | 1,460 |
| 4 | 35.0 | 33.0 | 2,044 |
| 4 | 50.0 | 34.0 | 2,990 |
| 5 | 0.75 | 8.5 | 101 |
| 5 | 1.0 | 8.8 | 116 |
| 5 | 1.5 | 9.6 | 148 |
| 5 | 2.5 | 11.6 | 229 |
| 5 | 4.0 | 15.0 | 359 |
| 5 | 6.0 | 17.7 | 564 |
| 5 | 10.0 | 22.5 | 900 |
| 5 | 16.0 | 26.9 | 1,206 |
| 5 | 35.0 | 36.7 | 2,850 |
| 7 | 0.75 | 9.6 | 158 |
| 7 | 1.0 | 10.0 | 177 |
| 7 | 1.5 | 10.9 | 232 |
| 7 | 2.5 | 13.2 | 348 |
| 7 | 4.0 | 16.2 | 487 |
| 7 | 6.0 | 19.3 | 685 |
| 12 | 0.75 | 11.1 | 178 |
| 12 | 1.5 | 14.8 | 332 |
| 12 | 2.5 | 18.0 | 530 |
| 18 | 0.75 | 13.3 | 260 |
| 18 | 1.5 | 17.6 | 510 |
| 24 | 1.5 | 20.2 | 635 |
| 25 | 0.75 | 15.6 | 370 |
Material Advantages
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Tinned Copper Conductors: Prevent oxidation at high temps, ensure stable conductivity
-
Dual Silicone Layers: Maintain flexibility at -60°C, resist cracking at 180°C
-
Chemical-Resistant Sheath: Withstands industrial fluids (pH 3-12)
-
Non-Cracking Performance: Retains elasticity after thermal cycling
Application Scenarios
Primary Industries:
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Steel mill furnace wiring
-
Chemical processing equipment
-
Cryogenic facility installations
-
Industrial oven internal circuits
Typical Uses:
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Heating element connections
-
Temperature sensor wiring
-
Switchgear in high-ambient areas
-
Foundry control systems
Engineering Selection Guide
| Selection Factor | Requirement |
|---|---|
| Temp Environment | -60°C to +180°C continuous |
| Voltage | ≤500V AC systems |
| Chemical Exposure | Compatible with oils/acids (avoid ketones) |
| Bending Requirements | Min. 5× Ø (fixed)/15× Ø (flexed) |
| Current Capacity | 25A max (4mm² @ 80°C ambient) |
Installation Notes:
Avoid sharp edges and compressive forces
Secure with high-temp cable ties (>200°C rated)
Maintain clearance from hot surfaces >250°C
Standards Compliance
-
Conductor: IEC 60228 Class 5
-
Insulation/Sheath: DIN VDE 0282-14 Silicone Rubber
-
Fire Performance: IEC 60332-1-2 (Flame retardant)