YMz1K mbzh (LSZH) Cable

What is YMz1K mbzh (LSZH) Cable?

The YMz1K mbzh (LSZH) cable is a Dutch-standard, low-voltage (0.6/1kV) halogen-free unarmoured power distribution cable accredited under KEMA K42C-1-5 and Dutch specification NEN 3618. Engineered for fixed installations in dry and humid industrial premises, production plants, and warehouses where fire and explosion risks are present, it is designed for installation in conduit surface-mounted on walls or embedded under plaster, but is explicitly not suitable for direct underground burial.

Equipped with XLPE insulation rated for continuous operation up to +90°C, the cable provides high dielectric strength and robust current-carrying capacity under static loads. Both the internal filler and the outer protective sheath are compounded from halogen-free flame-retardant (HFFR) materials compliant with NEN-EN 60332-3-24 Category C, ensuring zero corrosive halogen gas emissions and minimal smoke density during thermal decomposition to maintain emergency egress visibility and protect sensitive electronic switchgear from acidic corrosion.

YMz1K mbzh (LSZH) Cable Construction

• Conductor: Plain annealed copper conductor; Class 1 solid copper or Class 2 stranded copper conforming to European conductor standards.
• Insulation: Cross-Linked Polyethylene (XLPE) thermosetting compound rated for continuous +90°C operating service.
• Filler: Halogen-free flame-retardant (HFFR) compound bedding to maintain a uniform circular core profile.
• Outer Sheath: Halogen-free flame-retardant (HFFR) thermoplastic compound.
• Core Identification: 1 core: Black; 2 core: Blue, Brown; 3 core with earth: Blue, Brown, Green/Yellow; 3 core: Brown, Black, Grey; 4 core with earth: Brown, Black, Grey, Green/Yellow; 5 core with earth: Brown, Black, Grey, Blue, Green/Yellow.
• Sheath Colour: Black.

Applications

YMz1K mbzh (LSZH) cables are engineered for primary and secondary low-voltage electrical distribution in commercial buildings and hazardous industrial environments requiring non-toxic, low-smoke fire safety:

• Industrial Plants & Storage Depots: Chemical manufacturing plants, logistics hubs, and processing factories subject to potential fire or explosion risks.
• Conduit & Under-Plaster Routing: Fixed wiring drawn through protective conduits, surface-mounted on walls, or embedded under plaster.
• Switchboard & Motor Supply: Power distribution to industrial machinery, motor control centers (MCC), sub-distribution panels, and lighting grids.
• Dutch Installation Standard Projects: Electrical wiring conforming to NEN 1010, HD-604-5-C, IEC 60364, DIN VDE 0100, CEI 20-60, and NF C15-100 standards.

Specifications & Dimensions

Huadong Cable Group manufactures the full range of YMz1K mbzh (LSZH) cables across single-core configurations (1.5mm² to 400mm²), 2-core configurations (1.5mm² to 150mm²), 3-core configurations (1.5mm² to 300mm²), 4-core configurations (1.5mm² to 300mm²), and 5-core configurations (1.5mm² to 95mm²). Rated for an operating voltage of 0.6/1kV (test voltage 3.5kV AC) with a maximum operating temperature of +90°C and a short-circuit limit of +250°C, the cable series features nominal overall diameters from 5.6mm (single-core 1.5mm²) up to 67.8mm (4-core 300mm²) and nominal unit weights from 45 kg/km to 13,854 kg/km. Conductor DC resistance at 20°C strictly adheres to standard values (12.1 Ω/km for 1.5mm² down to 0.124 Ω/km for 150mm²), delivering multi-core air-rated current-carrying capacities up to 407A under a minimum bending radius of 12 times the overall diameter per NEN 3618 and HD-604-5-C standards.

Standards

Design & Accreditation Standards: NEN 3618, HD-604-5-C, KEMA K42C-1-5 (Tested and accredited by KEMA Laboratories, Netherlands)
Flame Retardancy & Fire Reaction: NEN-EN 60332-1/2, NEN-EN 30332-1, NEN-EN 60332-3-24 Category C (Bunched vertical cable fire test)
Halogen-Free & Low Smoke: NEN-EN 60754 (Zero halogen acid gas), NEN-EN 61034 (Low smoke density)
Installation Design Codes: Compliant with NEN 1010, DIN VDE 0100, CEI 20-60, NF C15-100, IEC 60364
Regulatory Compliance: EN 50575 (CPR Compliant), Low Voltage Directive 2014/35/EU, RoHS Directive 2015/65/EU, REACH EC 1907/2006, CE Marked

Frequently Asked Questions

Q: Can YMz1K mbzh (LSZH) cable be buried directly underground in soil?
A: No, YMz1K mbzh is an unarmoured installation cable and is explicitly classified in technical specifications as not suitable for underground laying.

Q: What is the primary difference between YMz1K mbzh and YMvKmb cables?
A: While both share 0.6/1kV XLPE insulation, YMz1K mbzh utilizes halogen-free flame-retardant (HFFR) compound for its filler and outer sheath to ensure zero acidic emissions during a fire, whereas YMvKmb utilizes a flame-retardant PVC (PVC FR) outer sheath.

Q: What does the ‘mbzh’ designation represent in Dutch cable standards?
A: In Dutch cable nomenclature, ‘mb’ indicates flame retardancy (moeilijk brandbaar) tested to bunched cable standards such as Cat. C, while ‘zh’ stands for zero halogen (zonder halogenen), ensuring low smoke and non-toxic gas emission.

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

YMz1K mbzh (LSZH) Cable – Why Choose Huadong Cable?

Huadong Cable Group manufactures YMz1K mbzh 0.6/1kV halogen-free power cables in strict compliance with Dutch KEMA K42C-1-5 and NEN 3618 standards, verified by continuous laboratory testing in ISO/IEC 17025 accredited facilities. Drawing on 99.99% high-purity electrolytic copper, automated extrusion lines apply uniform XLPE insulation and halogen-free compound fillers, ensuring precise concentricity, high dielectric withstand at 3.5kV AC, and stable operational performance up to +90°C service temperatures. Each production lot undergoes rigorous fire-reaction testing, acid gas emission measurement per NEN-EN 60754, and bunched cable flame retardancy evaluation under NEN-EN 60332-3-24 Cat. C.

Backed by more than two decades of cable manufacturing excellence, Huadong Cable Group operates advanced multi-core cabling machinery and zero-halogen compounding facilities certified to ISO 9001, CE, CPR (EN 50575), RoHS, and REACH protocols. Supplying directly from our manufacturing base eliminates intermediary distribution markups, allowing us to provide competitive factory-direct 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 global logistics support for EPC contractors and electrical distributors worldwide.