SY LSZH Cable

What is SY LSZH Flexible Control Cable?

The SY LSZH flexible control cable is a low-voltage, steel wire braided and halogen-free multi-core instrumentation and power cable featuring Class 5 flexible plain copper conductors, LSZH Type TI6 insulation, an LSZH bedding, a galvanized steel wire braid (GSWB) armor, and a black LSZH Type TM7 outer sheath complying with IEC/EN 60332-1-2, IEC/EN 60332-3-24, and IEC/EN 61034-1 standards. It is designed for flexible interconnection up to 300/500V in assembly lines, conveyor systems, production equipment, and computer units under light mechanical stress.

Engineered to ensure maximum operational safety and physical integrity in high-risk industrial facilities, the cable incorporates a corrosion-resistant galvanized steel braid that delivers robust mechanical impact protection and reliable electromagnetic screening. In the event of a fire, the zero-halogen thermoset/thermoplastic compound eliminates corrosive halogen acid gases and dense black smoke per IEC/EN 60574-1/2 and IEC/EN 61034-1, preventing electronic circuit corrosion and preserving clear evacuation routes in enclosed facilities.

SY LSZH Flexible Control Cable Construction

• Conductor: Class 5 flexible stranded bare copper conductors per BS EN / IEC 60228 delivering superior conductivity and dynamic flex endurance.
• Insulation: Low Smoke Zero Halogen (LSZH) thermoplastic compound Type TI6 engineered for dependable dielectric strength.
• Bedding / Inner Layer: Low Smoke Zero Halogen (LSZH) compound Type TM7 extruded over assembled cores for mechanical stability.
• Screen / Armour: Galvanized Steel Wire Braid (GSWB) with a minimum optical coverage of 50%, providing mechanical impact protection and EMI suppression.
• Outer Sheath: Low Smoke Zero Halogen (LSZH) compound Type TM7, flame retardant per IEC/EN 60332-1-2 and IEC/EN 60332-3-24.
• Core Identification: 2 core: Blue, Brown; 3 core: Blue, Brown, Green/Yellow; 4 core: Brown, Black, Grey, Green/Yellow; 5 core: Blue, Brown, Black, Grey, Green/Yellow.
• Sheath Colour: Black.

Applications

SY LSZH Control Flexible cables are specifically designed for measuring, regulation, and control connections across industrial automation machinery, production lines, and public facilities requiring both mechanical reinforcement and life-safety halogen-free compliance. They are suitable for flexible use under light mechanical stress in dry or moist indoor rooms, as well as outdoor sheltered setups protected from direct UV sunlight.

Typical installation environments include:

• Automated Assembly & Production Lines: Flexible control cabling for automated processing cells and conveyor drive machinery.
• Public Infrastructure & Transport Hubs: Rail terminals, airports, and commercial centers demanding zero halogen acid emissions during fire emergencies.
• Industrial Conveyors & Handling Systems: Power and control links subjected to mechanical abrasion, impacts, and light tensile forces.
• Computer Units & Control Enclosures: Interconnecting process automation cabinets and sensitive digital hardware requiring GSWB shielding.

Specifications & Dimensions

The SY LSZH Flexible Control cable range covers standard 2-core to 5-core configurations (with extended multi-core engineering up to 48 cores via core de-rating factors), across conductor cross-sections from 1.0mm² to 16mm² supporting continuous free-air current capacities up to 98A (and up to 61A in conduit) at 30°C. Rated for an operating voltage of 300/500V and an operating temperature range of -15°C to +70°C, the cable maintains a compact minimum bending radius of 10× overall diameter. Conductor DC resistance values span from 19.5 Ω/km (1.0mm²) down to 1.21 Ω/km (16mm²), while single-phase AC voltage drop figures range between 44 mV/A/m and 2.8 mV/A/m, all manufactured in strict compliance with European harmonized norms.

Standards

Huadong Cable Group manufactures and factory-inspects SY LSZH Flexible Control cables in full adherence to international electrical, mechanical, and fire performance standards:

Design & Conductor Standards: BS EN 60228 (Class 5 flexible plain copper conductors), VDE construction parameters
Flame Retardancy: IEC/EN 60332-1-2 (Single cable vertical flame), IEC/EN 60332-3-24 (Bunched cable fire test)
Halogen-Free & Smoke Emission: IEC/EN 61034-1 (Smoke Density), IEC/EN 60574-1 (Halogen Acid Gas), IEC/EN 60574-2 (Acidity and Conductivity)
Voltage Rating (Uo/U): 300/500V
Temperature Spectrum: Operating range: -15°C to +70°C
Regulatory Compliance: CE Marked, European Regulation EN 50575 (CPR Compliant), Low Voltage Directive 2014/35/EU, RoHS Directive 2015/65/EU, REACH EC 1907/2006

Frequently Asked Questions

Q: What is the mechanical function of the Galvanized Steel Wire Braid (GSWB) in SY LSZH cables?
A: The GSWB layer provides exceptional mechanical protection against cuts, crushing, and physical abrasions on factory floors, while the zinc-galvanized coating resists chemical corrosion and provides effective low-frequency electromagnetic screening.

Q: Can SY LSZH cables be connected directly to the main incoming electrical service fuse?
A: No, SY control cables are designed specifically for interconnecting machinery, instrumentation, and control circuits; they are not certified or intended for direct connection into the main electrical service fuse.

Q: Can SY LSZH flexible cables be installed outdoors?
A: Yes, SY LSZH cables can be installed in outdoor environments provided they are shielded and protected against direct sunlight exposure, or routed within protective cable trays and trunking.

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) and 100% Irrevocable Letter of Credit (L/C) at sight for engineering contractors, plant fabricators, and automation integrators.

Why Choose Huadong Cable for SY LSZH Flexible Control Cable?

Huadong Cable Group manufactures SY LSZH Flexible Control cables to stringent European quality criteria, verified through comprehensive IEC/EN 60332-3-24 vertical bunched flame retardance and IEC/EN 61034-1 smoke density testing regimes. Utilizing high-conductivity Class 5 flexible plain copper conductors, our automated extrusion lines apply precision LSZH Type TI6 insulation and Type TM7 bedding to deliver superior flexibility and long dielectric life. Reinforced with a high-density galvanized steel wire braid (GSWB) with a minimum 50% optical coverage and a tough black LSZH outer jacket, our cables ensure dependable mechanical protection, anti-corrosion resilience, and zero acid gas emissions in hazardous industrial environments.

With more than two decades of precision cable engineering expertise, Huadong Cable Group operates ISO 9001-certified multi-wire drawing, stranding, braiding, and polymer compounding workshops. By supplying directly from our manufacturing base, we offer competitive factory pricing, 100% routine and type test Mill Test Certificates (MTC) tested in accredited testing facilities, customized continuous drum cuts packaged on ISPM 15 heat-treated export reels, and professional logistical coordination to major ports worldwide.