DeviceNet LSZH SWB Armoured Trunk Cable

What is DeviceNet LSZH SWB Cable?

The DeviceNet LSZH SWB Cable is an armoured, low-voltage fieldbus trunk and backbone cable designed to provide simultaneous power and digital data connectivity in industrial automation networks in accordance with IEC/EN 61158, IEC/EN 62026-3, and UL 1581 standards. Operating at a voltage rating of 125V, it incorporates two distinct pairs: an AWG 24 data pair with foam-skin PE insulation and an AWG 22 power pair with solid PE insulation, enclosed within an advanced multi-stage shielding and mechanical armour system.

Unlike unarmoured commercial communication cords, this cable is engineered for demanding industrial environments where mechanical stress, physical impact, high electromagnetic noise, and fire risks coexist. The combination of an individual Al/PET foil screen, an overall tinned copper wire braid (TCWB), and a galvanized steel wire braid (GSWB) armour provides comprehensive dual-stage EMC shielding and high tensile/crush defense. Combined with zero-halogen thermoplastic inner bedding and outer sheathing, it eliminates toxic acidic halogen gas release and dense black smoke generation during fire incidents, safeguarding human life and delicate computing equipment.

DeviceNet LSZH SWB Cable Construction

• Conductors: Class 2 stranded tinned copper conductors delivering high electrical conductivity and anti-oxidation performance for both data and power circuits.
• Data Pair Insulation: Foam-skin Polyethylene (PE) insulation engineered for low dielectric loss, 120-ohm transmission impedance, and minimal signal attenuation.
• Power Pair Insulation: Solid Polyethylene (PE) insulation offering high dielectric breakdown strength and thermal stability.
• Electrostatic Shielding: Aluminium/Polyester tape (Al/PET) wrapped with an integrated stranded tinned copper drain wire for 100% electrostatic interference screening.
• Electromagnetic Screen: Overall Tinned Copper Wire Braid (TCWB) providing robust high-frequency shielding and low transfer impedance.
• Inner Bedding: Extruded Low Smoke Zero Halogen (LSZH) compound providing mechanical cushioning and core roundness.
• Mechanical Armour: Galvanized Steel Wire Braid (GSWB) delivering superior resistance to transverse mechanical crush, impact, and tensile forces.
• Outer Sheath: UV-resistant and flame-retardant Low Smoke Zero Halogen (LSZH) compound complying with IEC/EN 60332-1-2.
• Core Identification: Data Pair: Blue, White; Power Pair: Red, Black.
• Sheath Colour: Black.

Applications

DeviceNet LSZH SWB Cables are purpose-built for primary trunk lines, machine backbone networks, and device drops across factory automation architectures requiring both dynamic signal transmission and physical armor protection.

• Automated Production & Assembly Lines: Connecting PLCs, variable speed drives, robotics, and I/O blocks across automotive and electronics assembly tracks.
• Conveyor & Material Handling Infrastructure: Trunk networking in distribution warehouses and sortation hubs subjected to continuous vibration and mechanical impact.
• Process Manufacturing Plants: Connecting field instruments and sensor nodes in chemical, food processing, and packaging facilities requiring EMC immunity.
• Public Infrastructure & Hazardous Enclosures: Tunnels, airports, and enclosed control rooms requiring low-smoke zero-halogen fire safety.

Specifications & Dimensions

The DeviceNet LSZH SWB cable comprises a standardized hybrid 2-pair layout combining an AWG 24 (0.25mm²) data pair and an AWG 22 (0.25mm²) power pair. It features an overall nominal cable diameter of 10.3mm and a nominal weight of 160 kg/km. Rated for a nominal voltage of 125V, it operates continuously across temperatures of -20°C to +80°C in fixed installations and -5°C to +50°C under flexed movements, maintaining a minimum bending radius of 10 times the overall diameter. High-frequency transmission characteristics include a characteristic impedance of 120 ohms at 1MHz, mutual capacitance of 39 nF/km at 800Hz, velocity of propagation of 76%, and signal attenuation levels of 1.6 dB/100m at 500kHz and 2.3 dB/100m at 1MHz, with a maximum conductor resistance of 77 Ω/km on data conductors and 52 Ω/km on power conductors at 20°C.

Standards

Fieldbus Communication Standards: IEC/EN 61158, IEC/EN 62026-3, DeviceNet specifications
Flame Retardancy: IEC/EN 60332-1-2, UL 1581
Halogen Free & Low Smoke: IEC/EN 60754-1/2, IEC/EN 61034-1/2
Voltage & Temperature Ratings: 125V; Fixed: -20°C to +80°C; Flexed: -5°C to +50°C
Minimum Bending Radius: 10 × overall diameter
Regulatory Directives: CE Marked, European Regulation EN 50575 (CPR Compliant), Low Voltage Directive 2014/35/EU, RoHS Directive 2015/65/EU, REACH Directive EC 1907/2006

Frequently Asked Questions

Q: What is the primary operational role of DeviceNet LSZH SWB cable in industrial systems?
A: It functions as the primary trunk or backbone interconnection cable in DeviceNet automation networks, supplying both low-voltage DC power and high-speed digital communications to distributed field sensors, actuators, and controllers in a single cable.

Q: Why does the cable feature both TCWB and GSWB braiding layers?
A: The inner tinned copper wire braid (TCWB) acts as an electromagnetic interference (EMI/EMC) shield to preserve clean data signaling, while the outer galvanized steel wire braid (GSWB) provides heavy-duty mechanical protection against physical impact, cuts, and crush loads.

Q: What transmission advantages does the foam-skin PE insulation provide for the data pair?
A: Foam-skin PE offers a lower dielectric constant compared to solid insulation, which increases signal propagation velocity to 76%, stabilizes impedance at 120 ohms, and minimizes high-frequency attenuation up to 1MHz.

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 paid against shipping documents) and 100% Irrevocable Letter of Credit (L/C) at sight.

DeviceNet LSZH SWB Cable – Why Choose Huadong?

Huadong Cable Group manufactures DeviceNet LSZH SWB Cables in strict accordance with IEC/EN 61158, IEC/EN 62026-3, and UL 1581 standards, verified by comprehensive laboratory testing for impedance uniformity, velocity of propagation, transfer impedance, and flame propagation resistance. Utilizing high-conductivity Class 2 stranded tinned copper conductors, our advanced extrusion lines apply precision foam-skin PE insulation to ensure accurate 120-ohm impedance matching and minimal high-frequency attenuation. Combined with Al/PET foil screening, an overall TCWB braid, and high-tensile GSWB steel armouring under an LSZH jacket, our cables deliver robust physical durability and complete noise immunity across electrically harsh automation environments.

With more than 20 years of precision cable engineering expertise, Huadong Cable Group operates automated high-speed twisting, dual-layer braiding, and zero-halogen compounding workshops certified to ISO 9001, CE, CPR (EN 50575), RoHS, and REACH protocols. By eliminating intermediary markups, we provide competitive factory-direct pricing, 100% routine Mill Test Certificates (MTC) tested in accredited testing facilities, continuous drum lengths on ISPM 15 heat-treated export wooden reels, and seamless door-to-port logistics for EPC contractors, industrial automation integrators, and plant engineers worldwide.