NBR Welding Cable
Operating Temp: −20°C to 120°C
Voltage: up to 600 V (Test: 2.5 kV)
Double NBR insulation
Meets IS 9857
Colours: Black / Orange
Overview
High‑performance flexible welding cable with double NBR insulation for excellent electrical and mechanical properties.
Weather, oil & grease, moisture and abrasion resistant. Standard pack: 100 m, 200 m, 500 m.
Cable Standards
- Conductor: 99.9% pure electrolytic flexible bare copper (Class 6) as per IS 8130
- Separation: Polyester tape
- Insulation: Double insulated flexible nitrile rubber (NBR)
- Standard: Generally meets IS 9857
Silent Features
- Ultra high‑performance flexibility for durability & long life
- Excellent resistance to moisture, abrasion, oil & grease
- Excellent electrical & mechanical properties
- Excellent OZONE & weather resistance
- Better flame‑retardant properties
- Standard packing: 100 m, 200 m, 500 m
- Available colours: Black & Orange
Technical Data
Operating temperature: −20 °C to 120 °C · Voltage grade: up to 600 V · Test voltage: 2500 V · Insulation resistance: 10 MΩ/km
Oxygen index to catch fire: > 29.5% · Ignition temperature at 21% O₂: > 250 °C · Visibility during cable burning: < 60%
| Size (sq.mm) |
No./Dia of Strand (mm) |
Min. Insulation Thickness (mm) |
Overall Diameter (mm) |
Max. Resistance @20°C (Ω/km) |
Current Rating at Maximum Duty Cycle (A) |
| 100% | 85% | 60% | 30% | 20% |
| 16 | 516/0.20 | 2.0 | 10 | 13.7 | 94 | 102 | 121 | 172 | 210 |
| 25 | 783/0.20 | 2.0 | 12 | 8.21 | 125 | 136 | 161 | 228 | 279 |
| 35 | 497/0.30 | 2.0 | 13.7 | 5.09 | 156 | 169 | 201 | 285 | 349 |
| 50 | 702/0.30 | 2.2 | 15.3 | 3.39 | 197 | 214 | 254 | 360 | 440 |
| 70 | 999/0.30 | 2.4 | 17.3 | 1.95 | 248 | 269 | 320 | 453 | 555 |
| 95 | 1332/0.30 | 2.6 | 20.5 | 1.24 | 299 | 342 | 386 | 546 | 669 |
| 120 | 1702/0.30 | 2.8 | 22.7 | 0.79 | – | – | – | – | – |
Note: Insulation thickness and overall dimensions are nominal. The number of wires and strand diameter satisfy the
conductor resistance requirements as per IS:8130/1984.
Safety Requirements
- Bending radius: approx. 15 × cable diameter.
- Always spread out coiled welding cable before use to avoid overheating.
- Do not splice within 10 feet of the holder.
- Never coil/loop the cable around the worker’s body.
- Replace cables with damaged insulation.
Current ratings are based on ambient air at 25 °C and max conductor temperature of 90 °C; duty cycles vary by application:
Automobile welding: up to 100% · Semi‑automatic: 30–85% · Manual: 0–60% · Very intermittent/occasional: up to 20%.
Voltage drop: For total cable lengths over 15 m, consider a larger cross‑section to keep voltage drop within limits and maintain adequate welding current.
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