9843-LSZH 300V Alternative Cable

What is 9843-LSZH 300V Alternative Cable?

The 9843-LSZH 300V Alternative Cable is an unarmoured, double-screened low-capacitance multi-pair data transmission cable featuring Class 2 stranded tinned copper conductors, PE insulation, an LSZH inner sheath, an Al/PET tape with a drain wire, a tinned copper wire braid (TCWB) screen, and a grey LSZH outer jacket complying with EN 50575 CPR safety standards. It is designed for high-speed, noise-immune signal transmission up to 300V across industrial RS485 multi-drop communication buses and process instrumentation architectures.

Engineered to suppress external electromagnetic interference (EMI) and mitigate waveform distortion over extended communication loops, the cable provides an exact 120-ohm impedance match and a 66% velocity of propagation. Its dual-layer shielding architecture blocks both high-frequency electrostatic interference and low-frequency magnetic noise, while the halogen-free outer compound ensures zero acidic gas emissions and low smoke production during fire exposure, protecting sensitive electronic instrumentation and preserving clear escape routes in enclosed facilities.

9843-LSZH 300V Alternative Cable Construction

• Conductor: 3 Pairs 24 AWG (7/0.20mm) Class 2 stranded tinned copper conductors offering high electrical conductivity and resistance against oxidation.
• Insulation: Low-capacitance Polyethylene (PE) compound delivering high signal propagation speed and minimal dielectric loss.
• Inner Sheath: Extruded Low Smoke Zero Halogen (LSZH) compound providing mechanical stability and a smooth bedding surface for shielding.
• Screen 1: Aluminium foil/Polyester tape (Al/PET) providing 100% electrostatic shielding coverage.
• Screen 2: Tinned Copper Wire Braid (TCWB) for low-frequency magnetic noise suppression and enhanced mechanical durability.
• Drain Wire: Stranded tinned copper drain wire for quick, low-resistance ground termination.
• Outer Sheath: Thermoplastic Low Smoke Zero Halogen (LSZH) compound delivering flame-retardant, halogen-free fire performance.
• Core Identification: Pair 1: Blue/White and White/Blue; Pair 2: Orange/White and White/Orange; Pair 3: Green/White and White/Green.
• Sheath Colour: Grey.

Applications

The 9843-LSZH 300V Alternative Cable is engineered for multi-drop serial fieldbus systems, digital telemetry loops, and automated process networks requiring high electromagnetic immunity and zero-halogen fire safety.

• RS485 Serial Communication Networks: Multi-drop industrial serial bus architectures connecting PLCs, HMIs, and remote I/O terminal blocks.
• SCADA & Process Automation Systems: Long-distance digital communication loops linking field sensors and distributed control systems.
• Building Management Systems (BMS): Automated HVAC regulation, access control protocols, and energy metering telemetry in enclosed commercial complexes.
• Data Centers & Enclosed Public Facilities: Cleanrooms, transit hubs, and server rooms where toxic acid gas emissions and dense smoke cannot be tolerated during fire emergencies.

Specifications & Dimensions

The 9843-LSZH 300V alternative cable is engineered in a 3-pair 24 AWG (7/0.20mm) configuration with a nominal overall diameter of 9.15mm, a nominal weight of 108 kg/km, and a minimum bending radius of 10 times the overall diameter. Operating across a rated voltage of 300V within a fixed installation temperature range of -20°C to +80°C, it delivers a 120-ohm nominal impedance and a 66% velocity of propagation. All manufacturing tolerances, conductor dimensions, and physical properties strictly adhere to European harmonized cable directives and international data cable standards.

Standards

Voltage Rating: 300V
Temperature Spectrum: Fixed installation: -20°C to +80°C
Minimum Bending Radius: 10 × overall diameter
Conductor Standard: Class 2 stranded tinned copper per IEC/EN 60228 / ASTM standards
Fire Safety & CPR: European Construction Products Regulation EN 50575 (CPR Compliant)
Regulatory Directives: CE Marked, Low Voltage Directive 2014/35/EU, RoHS Directive 2015/65/EU, REACH Directive EC 1907/2006

Frequently Asked Questions

Q: Why is a nominal impedance of 120 ohms critical for RS485 communication cables?
A: The 120-ohm characteristic impedance matches standard RS485 bus terminating resistors, eliminating line reflections and signal echoes over extended transmission spans.

Q: What is the operational benefit of combining an Al/PET foil screen with a TCWB braid?
A: The Al/PET tape provides 100% physical coverage against high-frequency electrostatic noise, while the tinned copper wire braid delivers low-frequency magnetic shielding and high tensile strength.

Q: What life-safety advantages does the LSZH sheath offer compared to standard PVC?
A: The LSZH jacket emits negligible non-toxic smoke and zero corrosive halogen acids during a fire, preserving emergency escape visibility and protecting precision automation hardware from acid vapor corrosion.

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

9843-LSZH 300V Alternative Cable – Why Choose Huadong?

Huadong Cable Group manufactures 9843-LSZH 300V alternative cables in strict accordance with international data communication and RS485 standards, verified through rigorous laboratory testing for impedance consistency, attenuation limits, and halogen-free compliance. Utilizing Class 2 stranded tinned copper drawn from 99.99% high-purity electrolytic copper, we deliver conductors with superior conductivity and corrosion resistance. Combined with precision-extruded low-loss PE insulation, an LSZH inner sheath, dual Al/PET plus TCWB shielding, and a tough grey LSZH outer jacket, our cables deliver exceptional signal fidelity and operational stability from -20°C to +80°C in congested industrial control environments.

Leveraging more than two decades of dedicated cable engineering expertise, Huadong Cable Group operates advanced multi-pair twisting lines and precision extrusion equipment certified to ISO 9001, CE, CPR (EN 50575), RoHS, and REACH protocols. By eliminating distribution intermediaries, we offer competitive direct factory pricing, 100% Mill Test Certificates (MTC) tested in accredited testing facilities, tailored drum lengths on ISPM 15 heat-treated export wooden reels, and dependable door-to-port global logistics for automation integrators and EPC contractors worldwide.