Fire Resistant High Temperature Cable
Fire resistant high temperature cable is engineered for a fundamentally different purpose from other high-temperature cables: rather than simply surviving elevated ambient temperatures in normal operation, fire resistant cable must maintain continuous electrical circuit integrity during an active fire — continuing to power safety-critical circuits for the duration of evacuation and emergency response even as the cable itself is surrounded by flame.
This fire circuit integrity performance is achieved through mica tape insulation — a mineral-based insulation system that does not burn, does not carbonise, and does not lose its electrical insulating properties when exposed to direct flame at temperatures that completely destroy conventional cable insulation. The mica insulation layers remain structurally intact even after the outer polymer sheath and any fiberglass covering have been consumed by fire, providing an electrical barrier between the live conductors and preventing short circuits that would disable the safety circuit at the moment it is most needed.
Produced under UL Follow-Up Service File No. E333030, recognised under UL AWM Styles 5107, 5359, and 5360 — covering 200°C to 450°C and 300–600V AC across the full AWG and kcmil range.
Technical Specifications
| Parameter | Specification |
|---|---|
| Temperature rating | 200°C or 450°C (UL style dependent) |
| Voltage rating | 300V AC or 600V AC |
| Conductor | Solid or stranded copper |
| AWG range | 30 AWG – 4/0 AWG (style dependent) |
| Core insulation | Non-extruded mica tape (multiple layers) |
| Outer covering | Treated fiberglass braid (silicone varnish or PTFE finish) |
| Optional shield | 36–30 AWG Type A nickel or nickel-coated copper |
| Optional assembly | Up to 1.5″ OD multi-conductor with mica glass binder |
| Fire resistance | Mica insulation maintains integrity in direct flame exposure |
| Flame rating | Horizontal flame |
| Standard | UL AWM 5107/5359/5360, GB/T 19666, RoHS |
| Installation type | Fixed static — not suitable for repeated flexing |
UL AWM Style Reference
| UL Style | Temp | Voltage | AWG range | Mica tape (30–12 AWG) |
|---|---|---|---|---|
| 5107 | 200°C or 450°C | 600V AC | 26 AWG–550 kcmil | 25 mils min avg |
| 5359 | 200°C or 450°C | 600V AC | 30 AWG–4/0 AWG | 16 mils min avg |
| 5360 | 200°C or 450°C | 300V AC | 30 AWG–4/0 AWG | 12 mils min avg |
Reprinted from Product iQ with permission from UL Solutions. ©2026 UL LLC. File No. E333030, last updated 2025-12-01.
Key Features
Fire circuit integrity
- Mica insulation maintains electrical continuity in direct flame
- Safety circuits remain operational throughout fire and evacuation
- No smoke or toxic fumes at operating temperature
- Insulation retains structure after fiberglass braid is consumed
- Critical when polymer cables have already failed
Compliance & construction
- UL 5107, 5359, 5360 recognised — File No. E333030
- Multiple mica tape layers — redundant insulation system
- Optional nickel-coated copper shield for signal circuits
- Multi-conductor assembly available for multi-circuit fire wiring
- Static installation only — do not flex after installation
Common Applications
Fire alarm and detection systems
The primary application is the circuit wiring connecting fire detectors, manual call points, and sounders to the fire alarm control panel in commercial buildings, industrial facilities, and public infrastructure where the fire alarm wiring must continue to operate throughout the fire event to alert building occupants and trigger the fire suppression system.
Emergency lighting power feeds
Emergency lighting must illuminate escape routes for the duration required by building safety codes (typically 1–3 hours) — requiring the power feed from the UPS or battery system to the emergency luminaires to survive the fire in the cable route. Fire resistant cable ensures the luminaires remain powered throughout the evacuation period.
Fire suppression system control wiring
Sprinkler system zone valves, CO2 system solenoids, and deluge system control wiring must remain operational during the fire to deliver the suppression agent to the fire zone. Conventional cable would be destroyed by the fire before the suppression system has completed its activation cycle.
Other applications
- Stairwell pressurisation fan power and control wiring
- Smoke extraction system power feeds
- Emergency lift (elevator) dedicated circuit wiring
- Petrochemical plant safety shutdown system wiring
Ordering Information
Specify UL style (5107, 5359, or 5360), temperature rating, voltage rating, conductor count and AWG, optional shield, and length. Multi-conductor assemblies from 200 m MOQ. Single-conductor cut to length from 5 m for system testing and commissioning.
Fire circuit integrity documentation available on request. Contact us for pricing within 24 hours.
Why Choose CableApex
CableApex manufactures fire resistant high temperature cable under UL Follow-Up Service (File No. E333030) for Styles 5107, 5359, and 5360. All mica tape is applied on controlled-overlap winding lines with insulation resistance tested on every batch. We supply to fire system integrators, building electrical contractors, EPC contractors, and safety system consultants across more than 40 countries.
