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| Brand Name: | JinHong |
| Model Number: | YTTW |
| MOQ: | 100m |
| Price: | 12-35USD/m |
| Payment Terms: | T/T |
In life-threatening scenarios such as high-rise building fires, data center power outages, or oil drilling platform emergencies, cable failures can lead to catastrophic casualties and economic losses. YTTW Flexible Mineral Insulated Fire-Resistant Cable utilizes cutting-edge mineral insulation technology to eliminate these risks. Featuring stranded copper conductors, magnesium oxide mineral insulation (100% non-combustible), and a copper tape sheath, this cable provides stable power for 3 hours at 950℃ (compliant with IEC 60331-23 standards), is explosion-proof in hazardous areas, and releases no toxic gases. It can withstand Arctic temperatures as low as -40°C and desert temperatures as high as 60°C, and has passed EU (CE/EN 50200), North American (UL 2196), Australian (SAA), and Middle East & North Africa (SASO) certifications, making it an ideal choice for fire-safe power solutions for critical infrastructure worldwide.
YTTW is a high-quality low-voltage (0.6/1kV) flexible mineral-insulated fire-resistant cable designed for critical power transmission in flammable and hazardous environments where uninterrupted power supply and fire safety are paramount. Its innovative flexible mineral insulation structure ensures dual reliability (fire safety + flexible installation): Category 2 stranded copper conductors (low resistance, flexible), a high-purity magnesium oxide (MgO) mineral insulation layer (fire-resistant, non-combustible, and heat-insulating core layer), and a seamless copper tape sheath (corrosion-resistant, explosion-proof, and electromagnetically shielded).
"YTTW" Definition: Y = Flexible Structure; T = Copper Conductor; T = Magnesium Oxide Mineral Insulation Layer; W = Copper Tape Sheath.
Its unique feature is that, unlike rigid mineral-insulated cables, YTTW's stranded conductor and flexible copper sheath allow for a bending radius ≤ 6 times the cable's outer diameter, solving the installation difficulties of traditional mineral-insulated cables—making it ideal for complex and confined spaces such as high-rise buildings and precision equipment applications.
Compliant with IEC 60331-23 and UL 2196 standards, it can maintain uninterrupted power supply for 3 hours under a 950℃ open flame. This ensures the normal operation of fire pumps, emergency lighting, and life support equipment during prolonged fires—crucial for high-rise buildings, hospitals, and data centers.
Utilizing a stranded copper conductor + seamless copper tape sheath design, the minimum bending radius is ≤ 6 * outer diameter (compared to ≥ 15 * outer diameter for rigid mineral-insulated cables). It allows for easy wiring within wall conduits, ceiling gaps, and equipment interiors, reducing installation labor by 45% and requiring no special bending tools.
Both the magnesium oxide mineral insulation and copper sheath are non-flammable, non-toxic, and halogen-free (compliant with RoHS 3.0/REACH standards). It does not produce flammable gases or toxic fumes when burned; the copper sheath blocks spark propagation, meeting Ex d IIB T6 explosion-proof standards, suitable for oil drilling platforms and hazardous areas in chemical plants.
The copper sheath is treated with anti-oxidation agents, and the magnesium oxide insulation has moisture-proof properties, allowing it to withstand temperatures ranging from -40℃ to 120℃. It resists coastal salt spray, desert dust, industrial chemical corrosion, and permafrost cracking, operating reliably in extreme environments worldwide without additional protection.
Certified by CE/EN 50200 (EU), UL 2196 (North America), SAA (Australia/New Zealand), SASO (Middle East and North Africa), and IEC 60331. A single cable can meet the needs of critical fire safety projects worldwide, avoiding the costs of duplicate certifications. Dual fire and explosion protection reduces project safety risks and insurance costs by 25%.
| Model | Common Number of Cores | Common Conductor Cross-sectional Area (mm²) | Rated Voltage | Long-Term Operating Temperature | Main Performance Standards | Main Certifications | Popular Markets |
|---|---|---|---|---|---|---|---|
| YTTW (Global Standard) | 2,3,4,5,3+1,4+1 | 1.5,2.5,4,6,10,16,25 | 0.6/1kV | 105℃ | IEC 60331-23 (950℃/3H), IEC 60228 (Class 2) | CE, RoHS 3.0, IEC 60331 | EU, Asia, Africa |
| YTTW (UL Explosion-Proof) | 2,3,4,5,3+1 | 2.5,4,6,10,16,25,35 | 600V | 105℃ | UL 2196 (Fireproof), UL 1581 (Explosion-Proof) | UL, cUL, RoHS 3.0 | North American Certification |
| YTTW (High Flexibility) | 2, 3, 4, 5, 3+1 cores | 1.5, 2.5, 4, 6, 10mm² | 0.6/1kV | 105℃ | IEC 60331-23, fine stranded conductor (bending radius ≤ 5 * outer diameter) | CE, UL, SAA, RoHS 3.0 | Precision equipment/high-rise buildings (global) |
Note: All specifications are in stock (fast shipping within 3 days). Bulk orders can customize the number of cores (up to 5+1 cores) and cross-sectional dimensions (1.5~50mm²), and provide comprehensive fire resistance, explosion-proof, and certification guarantees.
YTTW cable has good flexibility (bending radius ≤ 6 * outer diameter), suitable for complex installations; rigid MI cable is more rigid (bending radius ≥ 15 * outer diameter), making it difficult to route in confined spaces. YTTW cable maintains the same fire resistance as rigid MI cable while reducing installation difficulty and cost by 40%, making it ideal for high-rise buildings and precision equipment.
It complies with IEC 60331-23 standard and can maintain stable power transmission for 3 hours under an open flame at 950°C. For projects requiring longer fire resistance (such as nuclear power plants), we offer the YTTW-LR (long fire resistance) version, which can withstand fire for 4 hours at 950°C.
Yes. Its seamless copper sheath is treated for oxidation and saltwater corrosion resistance, conforming to ISO standards. YTTW meets the 12097 marine corrosion resistance standard. It is widely used on offshore oil platforms and coastal high-rise buildings – we provide salt spray test reports for bulk orders.
No. It uses standard cable installation tools (cable cutters, crimping tools), unlike rigid MI cables which require special bending machines. Its flexible design allows for manual wiring in wall conduits and equipment gaps; we provide free installation guides for bulk orders.
It meets Ex d IIB T6 explosion-proof rating and is suitable for Zone 2 hazardous areas (flammable gas environments). When used with explosion-proof cable connectors, it can also be used in Zone 1 – we provide ATEX certification reports for EU market orders.
Yes. Its magnesium oxide mineral insulation has low dielectric loss, minimizing power loss (≤2.0% loss for 16mm² cross-section cables over 100 meters). It is suitable for long-distance emergency power lines (up to 500 meters for 16mm² cross-section cables). (meters), making it an ideal choice for large industrial parks and sports stadiums.
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