# N2XH flex

URL: https://www.chinneelectric.com/products-types/lszh-cables/n2xh-flex/
Brand: Chinne Electric

## Summary
Chinne Electric N2XH flex. Flexible LSZH power cable for public places.. TOXFREE® LSZH N2XH flex is a LSZH cable for fixed installations, highly recommended for use in public places.

## Key facts
- Standards: IEC 60227, IEC 60502, GB/T standards
- Corrosion protection and durable finish options for long service life
- Fire-resistant and circuit-safe design for demanding environments
- Heavy-duty construction with weather and corrosion resistance
- Application: Designed for building wiring, industrial equipment, and commercial installations requiring dependable cable performance and compliance with international standards.

## FAQ
### What is N2XH flex?
Chinne Electric N2XH flex is engineered for reliable performance in commercial and industrial installations, with documentation aligned to applicable international standards.

### Which standards apply to N2XH flex?
Refer to the product technical specifications for cited standards such as IEC, GB/T, or JB/T requirements relevant to cable systems and installation practice.

### Where is N2XH flex typically used?
Typical applications include building electrical systems, industrial plants, infrastructure projects, and MEP installations requiring organized cable routing and long-term maintainability.

### How do I select the right N2XH flex specification?
Selection should consider load, environment, corrosion protection, fire performance, and installation constraints. Contact Chinne Electric for project-specific guidance.

### Does Chinne Electric provide custom solutions for N2XH flex?
Chinne Electric supports customized dimensions, finishes, and project documentation for export and compliance requirements.

## Content
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Technical Specifications

    Conductor: Annealed copper, class 5 fine-stranded flexible, in accordance with IEC 60228.
    Insulation: Cross-linked polyethylene (XLPE), rated for continuous operating temperature of 90 °C; short-circuit temperature up to 250 °C.
    Outer Sheath: Thermoplastic polyolefin LSZH (low-smoke zero-halogen), black, UV-stabilised.
    Rated Voltage (U0/U): 0.6/1 kV, per IEC 60502-1 / VDE 0276-604.
    Core Identification: Colour-coded per HD 308; common configurations from 1-core up to 5-core (including reduced cross-section neutral and green/yellow protective earth variants).
    Fire Performance (CPR): Euroclass B2ca-s1,d1,a1 under EN 50575 / Construction Products Regulation (EU) No. 305/2011.
    Smoke Emission: Smoke density ≤ transmittance limit for s1 classification (EN 61034-2); no corrosive gas release (halogen-free per IEC 60754-2).
    Minimum Bending Radius (fixed install): Typically 8 × cable outer diameter for single core; 10 × cable outer diameter for multicore, per VDE 0276-604 guidance.


Applications
TOXFREE® N2XH flex is intended for fixed indoor installations where enhanced fire safety and the absence of toxic or corrosive emissions are mandatory requirements. In the event of fire, the LSZH jacket prevents the release of halogen acids and dense opaque smoke, protecting both personnel and sensitive electronic equipment. Typical installation environments include:

    Hospitals, clinics, and healthcare facilities
    Schools, universities, and educational buildings
    Museums, galleries, and cultural heritage sites
    Airport terminals and railway stations
    Shopping malls and large retail complexes
    Office buildings with high occupancy density
    Laboratories and research centres containing electronic instrumentation
    Data centres and telecommunications rooms
    Public entertainment and assembly venues

Suitable for cable trays, conduits, trunking, and direct surface mounting (non-buried). The class 5 flexible conductor eases installation in confined access areas and around tight bends typical of retrofit and renovation projects.

Standards & Compliance

    IEC 60502-1 — Power cables with extruded insulation and their accessories for rated voltages from 1 kV (Um = 1.2 kV) up to 30 kV. Covers construction, materials, and testing requirements.
    VDE 0276-604 — German national implementation and extension of IEC 60502-1 for power cables; defines additional test methods and marking requirements adopted in this product.
    HD 308 — Harmonisation document for identification of cores in cables and flexible cords. Governs the insulation colour scheme applied.
    IEC 60228 — Conductors of insulated cables. Class 5 flexible copper conductors.
    EN 50575 — Power, control, and communication cables for general applications in construction works subject to reaction to fire requirements. Basis for CE marking and Declaration of Performance (DoP) under the Construction Products Regulation (EU) No. 305/2011.
    EN 13501-6 — Fire classification of construction products and building elements: Classification using data from reaction to fire tests on power, control, and communication cables. Establishes the Euroclass B2ca designation.
    IEC 60754-2 — Test on gases evolved during combustion of materials from cables: Determination of acidity (by pH measurement) and conductivity. Verifies halogen-free claim.
    IEC 61034-2 — Measurement of smoke density of cables burning under defined conditions. Supports s1 smoke classification.


What does LSZH actually mean, and how does it differ from PVC sheathing?
LSZH stands for low-smoke zero-halogen. The outer sheath compound contains no halogenated polymers (fluorine, chlorine, bromine, iodine) and incorporates mineral flame-retardant fillers. Under fire, an LSZH cable emits significantly lower smoke density compared to PVC, and the combustion gases are non-corrosive and substantially less toxic. Standard PVC sheaths release hydrogen chloride gas, which combines with atmospheric moisture to form hydrochloric acid, causing respiratory hazard and corrosion of electronic contacts. IEC 60754-2 sets the threshold for halogen-free designation: conductivity of the effluent must not exceed