NHXH FE180 E90 Cable

What is NHXH FE180 E90 Cable?

The NHXH FE180-E90 Cable is a German-specification, unarmoured, low-voltage (0.6/1kV) halogen-free fire-survival power and control cable manufactured in compliance with DIN VDE 0266, DIN VDE 0276-604, and DIN 4102-12. It is designed for fixed indoor installations across high-density public facilities and industrial networks where sustained electrical service during a major fire emergency is legally mandated.

The designation FE180-E90 represents extended fire endurance benchmarks: FE 180 indicates intrinsic insulation fire resistance under direct flame exposure for 180 minutes in accordance with IEC 60331 and DIN VDE 0472-814, while E 90 certifies that the entire installed system maintains functional circuit integrity for at least 90 minutes per DIN 4102-12. Compounded entirely from thermoplastic low-smoke zero-halogen (LSZH) polymers with flame-protecting wrapping, the cable releases no corrosive halogen acid fumes and produces minimal smoke, preserving visibility along emergency escape routes and protecting digital control infrastructure from secondary corrosion.

NHXH FE180-E90 Cable Construction

• Conductor: High-conductivity plain annealed copper; RE Class 1 solid copper conductor or RM Class 2 circular/compacted stranded copper conductor conforming to EN 60228.
• Insulation: Flame-protecting wrapping with cross-linked Low Smoke Zero Halogen (LSZH) compound.
• Bedding / Inner Sheath: Extruded Low Smoke Zero Halogen (LSZH) compound enclosing the assembled cores.
• Screen / Armour: Unscreened and unarmoured lightweight build, optimized for efficient installation in certified interior containment systems.
• Outer Sheath: Flame-retardant Low Smoke Zero Halogen (LSZH) thermoplastic compound.
• Core Identification: 3 cores: Brown, Blue, Green/Yellow; 4 cores: Brown, Black, Grey, Green/Yellow; 5 cores: Brown, Black, Grey, Blue, Green/Yellow; 7 cores and above: Black with continuous White numerical numbering.
• Sheath Colour: Safety Orange.

Applications

NHXH FE180-E90 safety cables are engineered for indoor fixed electrical circuits where a 90-minute operational circuit integrity is required by fire protection regulations:

• Smoke Exhaust & Pressurization Systems: Power feeds supplying high-capacity smoke extraction blowers, stairwell pressurization fans, and motorized fire dampers.
• Water Booster & Sprinkler Pumps: Operational energy lines connected to primary firefighting water pumps, deluge panels, and fire suppression stations.
• Firefighter Evacuation Lifts: Power supply runs for dedicated emergency elevators and primary life-safety distribution centers.
• High-Occupancy Public Buildings: Underground transit platforms, rail stations, international airport terminals, hospitals, and high-rise commercial towers (strictly for indoor routing; not permitted for direct burial into the ground or into water).

Specifications & Dimensions

Huadong Cable Group manufactures the complete cross-sectional spectrum of NHXH FE180-E90 cables across single-core configurations from 16mm² to 300mm², 2-core configurations from 1.5mm² to 2.5mm², 3-core configurations from 1.5mm² to 35mm² (including reduced-neutral designs from 35/16mm² to 120/70mm²), 4-core configurations from 1.5mm² to 150mm², 5-core configurations from 1.5mm² to 35mm², and multi-core control configurations up to 12 cores at 1.5mm² and 2.5mm². Operating at a rated voltage of 0.6/1kV across a continuous temperature range of -5°C to +90°C, the series exhibits nominal outer diameter ranging from 10.5mm (single-core 16mm²) up to 53.0mm (4 × 150mm²) and unit weights spanning 250 kg/km up to 7,725 kg/km. Conductor DC resistance values at 20°C strictly conform to EN 60228 standards (from 12.1 Ω/km for 1.5mm² down to 0.0601 Ω/km for 300mm²), delivering multi-core air current-carrying capacities up to 783A under a minimum bending radius of 12 times the overall diameter for solid conductors (RE) and 15 times for stranded conductors (RM) in full compliance with DIN VDE 0266 and DIN VDE 0276-604 requirements.

Standards

Design & Testing Specifications: DIN VDE 0266, DIN VDE 0276-604, DIN VDE 0472-814, DIN 4102-12, EN 60228[br>
Fire Resistance & Circuit Integrity: Insulation integrity FE 180 (IEC 60331 / DIN VDE 0472-814), System circuit integrity E 90 (DIN 4102-12)
Flame Retardancy: IEC/EN 60332-3-24 (Bunched vertical cable fire propagation test)
Operating & Thermal Ratings: Voltage Rating Uo/U: 0.6/1kV; Operating Temperature: -5°C to +90°C; Bending Radius: 12 × OD (RE), 15 × OD (RM)
Regulatory Directives: Low Voltage Directive 2014/35/EU, RoHS Directive 2015/65/EU, REACH EC 1907/2006, CE Marked

Frequently Asked Questions

Q: What is the technical difference between NHXH and NHXCH cables?
A: NHXH is an unscreened and unarmoured fire-resistant power cable, whereas NHXCH includes an additional concentric copper wire and tape screen that provides electromagnetic compatibility (EMC) shielding and functions as an earth return conductor.

Q: Can NHXH FE180-E90 cable be directly buried underground or submerged in water?
A: No, official specification guidelines explicitly state that these safety cables are designed for indoor installations and may not be installed directly into the ground or into water.

Q: What does the E90 circuit integrity rating ensure in an emergency?
A: The E90 classification certifies that the complete installed system—including cable, support brackets, and fixings—will maintain electrical continuity for at least 90 minutes under standardized fire curve testing (DIN 4102-12), ensuring continued operation of heavy Smoke extractors, fire pumps, and emergency elevators.

Q: What payment terms does Huadong Cable accept for international orders?
A: We accept standard international commercial payment terms, primarily Telegraphic Transfer (T/T, 30% advance deposit and 70% against shipping documents) and 100% Irrevocable Letter of Credit (L/C) at sight.

NHXH FE180 E90 Cable – Why Choose Huadong Cable?

Huadong Cable Group manufactures NHXH FE180-E90 fire-resistant safety cables in accordance with DIN VDE 0266 and DIN VDE 0276-604 requirements. Using 99.99% high-purity electrolytic copper, our production lines manufacture RE solid and RM stranded conductors with tight resistance tolerances. Computerized extrusion line apply flame-protecting wrapping, cross-linked Halogen-free insulation, and zero-halogen bedding, providing electrical stability and fire survival performance up to 180 minutes (FE 180) alongside verified bunched flame retardancy per IEC/EN 60332-3-24.

Backed by more than 20 years of precision cable engineering expertise, Huadong Cable Group operates manufacturing facilities certified to ISO 9001, CE, RoHS, and REACH protocols. Direct factory supply eliminates intermediary agent markups, allowing us to offer competitive pricing, 100% routine Mill Test Certificates (MTC) tested in accredited testing facilities, continuous drum lengths packaged on ISPM 15 heat-treated export wooden reels, and dependable logistics for international contractors and electrical distributors worldwide.