FR-N1X6G3 LSZH Cable

What is FR-N1X6G3 Cable?

The FR-N1X6G3 Cable is a low-voltage, unarmoured halogen-free power and control cable engineered to IEC 60502-1 and French specification XP C 32-325 for 0.6/1kV electrical distribution networks. Constructed with Class 1 solid (RE) or Class 2 stranded (RM/SM) plain copper conductors, cross-linked polyethylene (XLPE) core insulation, and a blue LSZH outer sheath, it provides reliable energy transmission across distribution grids, substations, and modern commercial complexes.

Engineered primarily for public infrastructure and mission-critical buildings, the cable prevents the emission of dense obscuring smoke and corrosive acid gases in the event of a fire, safeguarding human evacuation routes and protecting sensitive electronic switchgear from acidic corrosion. The robust outer sheath combines IEC 60332-3-24 Category C bunched fire retardance with AD7 water immersion resistance, ISO 4892-3 UV stability, and EN 60229-4.1 mechanical abrasion resistance, allowing versatile deployment in both indoor raceways and harsh outdoor service environments.

FR-N1X6G3 Cable Construction

• Conductor: Class 1 plain solid copper (RE) for smaller sizes or Class 2 stranded circular/sector-shaped plain copper (RM/SM) per EN 60228.
• Insulation: High-grade Cross-Linked Polyethylene (XLPE) delivering low dielectric loss and high thermal performance up to +90°C.
• Bedding / Inner Layer: Cores stranded concentrically to maintain mechanical circularity, balance, and smooth pull-through handling.
• Screen / Armour: Unarmoured and unscreened construction optimized for high flexibility and rapid termination in conduits, ducts, and cable ladders.
• Outer Sheath: Heavy-duty, UV-resistant, abrasion-resistant, and flame-retardant Low Smoke Zero Halogen (LSZH) compound.
• Core Identification: 1 core: Black; 2 core: Blue, Brown; 3 core: Black, Brown, Grey (or Green/Yellow, Blue, Brown); 4 core: Blue, Brown, Black, Grey (or Green/Yellow, Brown, Black, Grey); 5 core: Blue, Brown, Black, Grey, Black (or Green/Yellow, Blue, Brown, Black, Grey).
• Sheath Colour: Blue.

Applications

FR-N1X6G3 low-voltage cables provide electrical power supply across industrial power plants, commercial facilities, and distribution systems where high human occupancy or sensitive technical equipment demands halogen-free safety. Their AD7 water resistance and UV-stabilized sheath permit indoor and outdoor routing directly on cable trays, fixed to walls, inside protective conduits, or drawn through underground duct banks.

• Public Transit Hubs & Airports: Main sub-distribution lines in passenger terminals, rail stations, and underground facilities requiring minimal fire smoke.
• Data Centers & Server Rooms: Power distribution to uninterruptible power systems and IT racks where corrosive acid fumes must be avoided.
• Healthcare & Educational Institutions: Main switchboard and panel board connections across hospital complexes and university campuses.
• Industrial Processing Facilities & Utilities: Energy supply in power generation stations, water treatment plants, and distribution substations.

Specifications & Dimensions

The FR-N1X6G3 cable family encompasses single-core configurations from 2.5mm² up to 500mm² (supporting continuous currents up to 1,173A in air and pulling forces up to 35.00 kN) alongside multi-core assemblies from 2-core to 5-core across conductor cross-sections from 1.5mm² to 240mm². Operating at a rated voltage of 0.6/1kV, it supports a fixed operating temperature spectrum of -30°C to +90°C, maintaining a minimum bending radius of 6 times the overall diameter for fixed installations and 12 times the overall diameter during dynamic cable pulling. Conductor DC resistance values at 20°C range from 12.1 Ω/km (1.5mm²) down to 0.0366 Ω/km (500mm²), with overall diameters spanning from 8.0mm on single-core 2.5mm² up to 60.90mm on 4-core 240mm² cables and weights from 75 kg/km to 9,550 kg/km, adhering strictly to IEC 60502-1 and XP C 32-325 tolerances.

Standards

Design & Conductor Standards: IEC 60502-1, Generally to XP C 32-325, EN 60228, EN 62230
Flame Retardancy: IEC 60332-1-2 (Single cable vertical flame), IEC 60332-3-24 (Category C bunched cable vertical flame spread)
Halogen-Free & Low Smoke: IEC 60754-1/2 (Zero Halogen Acid Gas), IEC 61034-1/2 (Low Smoke Density)
Environmental Resistance: ISO 4892-3 (UV Resistant), EN 60229-4.1 (Abrasion Resistant), AD7 (Water Resistant)
Operating Temperature & Bending: Fixed: -30°C to +90°C; Bending Radius: 6 × OD (Fixed), 12 × OD (During Installation)
Regulatory Compliance: European CPR EN 50575 Class Cca-s2,d2,a2, Low Voltage Directive 2014/35/EU, CE Marked, RoHS 2015/65/EU, REACH EC 1907/2006

Frequently Asked Questions

Q: What does the AD7 water resistance rating signify for FR-N1X6G3 cable?
A: An AD7 rating certifies that the cable’s external LSZH sheath can withstand temporary or intermittent immersion in water, making it suitable for outdoor cable trays, wet basements, and underground duct systems subject to periodic flooding.

Q: What is the significance of the EN 50575 CPR classification Cca, s2, d2, a2?
A: Under European Construction Products Regulation (CPR), this classification confirms high fire performance: Cca denotes low flame spread and heat release, s2 indicates limited smoke emission, d2 classifies burning droplets, and a2 verifies low acidity of emitted combustion gases.

Q: Can the FR-N1X6G3 cable be pulled directly through outdoor conduits and duct banks?
A: Yes, the cable is rated for outdoor conduit and duct installations, aided by an EN 60229-4.1 abrasion-resistant outer jacket and ISO 4892-3 UV protection, provided the installation bending radius of 12× overall diameter is maintained.

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

FR-N1X6G3 Cable – Why Choose Huadong?

Huadong Cable Group manufactures FR-N1X6G3 low-voltage power cables in strict conformity with IEC 60502-1 and XP C 32-325 standards, verified by comprehensive laboratory testing for conductor resistance, XLPE insulation integrity, and IEC 60332-3-24 bunched flame resistance. Utilizing high-purity oxygen-free Class 1 solid and Class 2 stranded plain copper conductors, our automated extrusion lines apply cross-linked polyethylene insulation to ensure low electrical loss and continuous operation up to +90°C. Protected by a heavy-duty blue LSZH outer sheath engineered for AD7 water resistance and ISO 4892-3 UV resistance, our cables deliver electrical reliability and fire safety for demanding infrastructure projects.

With more than 20 years of precision cable engineering expertise, Huadong Cable Group operates fully automated drawing, stranding, and halogen-free polymer extrusion facilities certified to ISO 9001, CE, CPR (EN 50575 Class Cca), RoHS, and REACH protocols. By supplying directly from our manufacturing base, we provide competitive factory pricing, 100% routine Mill Test Certificates (MTC) tested in accredited facilities, continuous drum lengths on ISPM 15 heat-treated export wooden reels, and seamless door-to-port logistics for EPC contractors and utilities worldwide.