H01N2-D Welding Cable

What is H01N2-D Welding Cable?

The H01N2-D EN 50525-2-81 Welding Cable is a European-harmonized (HAR), low-voltage (100V) extra-flexible rubber-jacketed power cable engineered in accordance with EN 50525-2-81, HD 22.6, and VDE 0282-6. It is specifically built for heavy-duty secondary power circuits, delivering high-amperage electrical current from welding generator sets and transformer rectifiers to hand-held torches, automated arc welding machines, and automotive robotic arms.

Beyond traditional welding processes, its robust, highly flexible construction makes it suitable for use as an interconnecting battery cable and within commercial battery energy storage systems (BESS). Featuring high-density Class 6 copper stranding, a protective PET separator, and a heavy-duty synthetic rubber sheath, the cable is engineered to withstand arduous mechanical abuse, continuous flexing fatigue, ozone, UV radiation, and severe exposure to oils, acids, fats, and petrols without jacket degradation or electrical failure.

H01N2-D EN 50525-2-81 Welding Cable Construction

• Conductor: High-purity annealed plain copper conductor, generally conforming to Class 6 extra-flexible stranding per EN 60228 (wires with maximum 0.21mm diameter for sizes up to 95mm² and 0.51mm for sizes 120mm² to 150mm²).
• Separator: Synthetic Polyester Tape (PET) longitudinally wrapped around the conductor to prevent adhesion between rubber and fine copper strands while ensuring clean stripping.
• Outer Sheath / Insulation: Single-layer, heavy-duty vulcanized rubber compound serving as both the dielectric insulation and mechanical protective jacket.
• Sheath Colour: Available in Black (Code: E) and Red (Code: RD).
• Chemical & Environmental Resistance: Specially formulated for verified resistance to ozone, radiation, mineral oils, acids, industrial fats, and petrols.

Applications

H01N2-D flexible rubber cables are engineered for high-amperage power transmission in demanding industrial environments:

• Automated & Robotic Welding Cells: Secondary power jumper cables for articulating welding robots, automated conveyor feeds, and multi-spot automotive production lines.
• Heavy Fabrication & Shipyards: Robust flexible leads for manual metal arc (MMA), MIG, and TIG welding machines operating under rough shipyard and steel assembly conditions.
• Battery Energy Storage Systems (BESS): Interconnecting DC bus jumper cables connecting modular battery racks, containerized power modules, and inverter inputs.
• Chemical & Automotive Workshops: Floor-run power feeds exposed to splashing motor oils, petrols, battery acids, grease, and continuous vehicle traffic.

Specifications & Dimensions

Huadong Cable Group manufactures H01N2-D welding cables across nominal cross-sectional areas from 10mm² up to 150mm². Operating at a rated welding voltage of 100V, the cable accommodates an operating temperature range of -40°C to +85°C for fixed installations and -20°C to +85°C for flexed operations, maintaining a minimum flexing bending radius of 6 times the overall diameter. Nominal sheath covering thicknesses range between 2.0mm and 3.0mm, overall outer diameters span from 9.0mm (10mm²) up to 23.0mm (150mm²), and unit weights vary between 146 kg/km and 1,556 kg/km. Maximum conductor DC resistance values at 20°C strictly conform to EN 60228 (1.91 Ω/km for 10mm² down to 0.129 Ω/km for 150mm²). Based on HD 516 S2 parameters at an ambient air temperature of 25°C with a maximum conductor temperature of 85°C, the cable provides current ratings for a 5-minute operating cycle spanning from 100A to 580A at a 100% duty cycle, and up to 122A to 980A at a 35% duty cycle, with all dimensional and electrical values complying with EN 50525-2-81.

Standards

Design & Harmonization Standards: EN 50525-2-81, EN 60228, HD 22.6, VDE 0282-6, BS 638 Part 4
Flame Retardancy: IEC/EN 60332-1-2 (Vertical flame propagation on a single insulated cable)
Operating & Thermal Ratings: Voltage Rating: 100V; Fixed Temperature: -40°C to +85°C; Flexed Temperature: -20°C to +85°C; Minimum Bending Radius: 6 × OD (Flexed)
Chemical Resistance: Resistant to ozone, radiation, oils, acids, fats, and petrols
Regulatory Compliance & Approvals: <HAR> Mark, Low Voltage Directive 2014/35/EU, RoHS Directive 2015/65/EU, REACH EC 1907/2006, CE Marked

Frequently Asked Questions

Q: What is the operating duty cycle and how does it determine current carrying capacity?
A: The duty cycle is the length of time during which welding current flows over an operational period of 5 minutes, expressed as a percentage. Shorter duty cycles allow higher permissible currents because thermal dissipation occurs during rest intervals; for instance, a 70mm² cable carries 355A at a continuous 100% duty cycle, but can safely handle up to 600A at a 35% duty cycle.

Q: Can H01N2-D cable be used in battery energy storage systems (BESS)?
A: Yes, official engineering specifications designate H01N2-D as an ideal interconnecting cable for battery banks and containerized storage facilities, where extra-flexible stranding enables easy termination in compact cubicles.

Q: What is the purpose of the PET separator tape over the conductor?
A: The polyester (PET) separator tape prevents the molten rubber compound from penetrating the fine copper stranding during vulcanization, preserving high flexural movement and allowing rapid stripping without damaging individual copper strands.

Q: What commercial 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.

H01N2-D Welding Cable – Why Choose Huadong Cable?

Huadong Cable Group manufactures H01N2-D welding cables in strict accordance with European harmonized standard EN 50525-2-81 and HD 22.6. Using 99.99% high-purity electrolytic copper, our advanced multi-wire bunching equipment produces Class 6 flexible conductors with uniform lay lengths to prevent kinking, knotting, or strand fatigue under continuous robot movement. Automated extrusion and continuous vulcanization lines apply high-grade rubber compounds over helical PET separator tapes, ensuring consistent wall thickness and resistance to mechanical tears, welding slag, and chemical ingress.

With more than 20 years of precision cable manufacturing experience, Huadong Cable Group operates testing facilities accredited under ISO 9001 and compliant with CE, HAR, and RoHS requirements. Supplying directly from our manufacturing facility eliminates intermediary agent markups, allowing us to provide competitive factory pricing, 100% routine Mill Test Certificates (MTC) tested in accredited testing facilities, continuous drum packaging on ISPM 15 heat-treated export wooden reels, and dependable logistics for international automotive OEMs, shipyards, and battery energy storage contractors worldwide.