HOFR NBR INSULATED EXTRA FLEXIBLE COPPER WELDING CABLE (AWG SIZE)

NBR Insulated Extra Flexible Copper Welding Cable (AWG Size) is designed for high-current welding applications requiring superior flexibility and durability. It features finely stranded copper conductors for excellent conductivity and an NBR rubber insulation that offers strong resistance to heat, oil, abrasion and harsh industrial conditions. Suitable for continuous flexing, this cable ensures reliable performance in workshops, fabrication units and heavy-duty welding environments.

Welding Cable Structure

Conductor : Welding Cable has a rope lay Class K stranded soft drawn bare copper conductor per ASTM B-172.

Separation : Polyester tape (25 to 30) Micron

Outer Sheath : NBR Rubber Double Sheath, black and oil resistant

*Any other Color on specific request can also be supplied

Welding Cable Technical Data

Fixed installation : -30°c to max.+ 90°C

Nominal voltage : 600V

Test voltage : 3000V

Mechnical Properties : Tensile strength = 10 N/mm² Min.
Elongation = 300 Min.

Min. bending radius : 4 x cable diameter

Flame propagation : Flame retardant test as per IEC 60332-1

Welding Cable Applications

Welding Cable is for use on connections from electrode holders and clamps to arc welders, bus welding box or transformers. Welding cable is for applications up to 600 volts and temperatures from -30°C to +90°C.

Standard length cable packing:
Coils 100, 200, 300 and 500 m. in wooden reels

Cable Features

Ultra high performance flexible welding lead, double insulated

Excellent flexibility to last longer in flex applications

RoHS Compliant

Outstanding toughness & durability

High resistance to cuts, tears & abrasions

Resistance to oil, solvents and chemicals

Excellent ozone and weather resistant

TECHNICAL INFORMATION

Cross Sectional Area	Copper Construction	Nominal Thickness	Outer Dia Appx.	Max. Conductor Resistance at 20˚C	Max.Current (Amb. Temp of 40˚C)
AWG	Nos. / Dia. mm	mm	mm	Ω/km	AMPS
6	273 / 0.254	2.00	9.10	1.39	115
4	427 / 0.254	2.00	10.60	0.873	150
2	651 / 0.254	2.00	11.80	0.554	205
1	817 / 0.254	2.10	13.50	0.44	240
1/0	1045 / 0.254	2.20	13.70	0.349	285
2/0	1330 / 0.254	2.40	16.20	0.276	325
3/0	1672 / 0.254	2.60	18.20	0.221	380
4/0	2146 / 0.254	3.00	21.60	0.175	440
250MCM	2508 / 0.254	3.20	24.00	0.149	495
350MCM	3496 / 0.254	3.40	26.30	0.106	680
500MCM	5013 / 0.254	3.50	29.20	0.0743	720

Note

The number of wires is approximate and wire diameter is nominal; they shall be such as to satisfy the requirements of conductor resistance of IEC 60228 / DIN VDE 0295 / IS 8130 / BS 6360

In view of continuous improvements in our design and process, specifications given here in are subject change without notice.

> All are flexible conductor

> Insulation material is NBR

Rating factors for variation in ambient temperature

Ambient temperature °C	20°	25°	30°	35°	40°	45°	50°	55°	60°	65°
Rating Factor	1.04	1.00	0.96	0.91	0.87	0.82	0.76	0.69	0.64	0.57