Spawlab.pl
We Are the Manufacturer, Guaranteed Top Quality
We offer professional welding cables of our own production. That is why, when you buy at Spawlab.pl, you know for certain that every part, from the cable to the holder, has been chosen with care. What is more, everything is assembled with attention to the smallest detail. As a result, we guarantee uncompromising quality and full technical support.
Professional 300 A / 3 m Electrode Holder Cable, High Power, Full Control
When you raise the welding power, you need a cable that not only carries it but also keeps you in control. For that very reason this assembly combines a thick, efficient 50 mm² cable with a solid, industrial 300 A holder. Consequently, it is the right tool for welding structures, thick plate and work with large diameter electrodes, where reliability and confidence in every move decide the outcome.
Technical Specification
| Parameter | Value |
| Application | Electrode holder cable (MMA) |
| Maximum welding current | 300 A (for continuous work) |
| Cable length | 3 metres |
| Cable type | Original H01N2-D (100% copper) |
| Recommended cable cross section | 50 mm² |
| Electrode holder | Professional, fully insulated 300 A |
| Connector to the welding machine | Copper, tinned lug, hydraulically crimped |
Key Features and Benefits, an Edge in Every Detail
Solid 300 A Electrode Holder: Firm Grip, Better Results
Work at 300 A calls for a holder that is firm and safe. For that very reason, the heart of this assembly is a reinforced, fully insulated 300 A holder. First of all, its solid build suits thicker electrodes, and a strong spring keeps them firmly in place. What is more, the insulating materials cope well with higher temperatures. As a result, you can weld longer and more safely, with full trust in your tool.
50 mm² H01N2-D Cable: Output and Safety
To carry the power of 300 amperes efficiently you need the right conductor. Specifically, the H01N2-D cable with a 50 mm² cross section is your guarantee of output. Thanks to this, the cable does not overheat during intensive work and the voltage drop stays negligible. In the end, its flexible rubber sheath keeps the work comfortable in spite of the larger diameter.
Armoured Hydraulic Lug
The quality of a cable assembly is defined by its weakest point. For this reason, we join the cable to the plug by hydraulic crimping. In the end, this creates a monolithic joint, mechanically very strong and conducting current perfectly. So, you can be sure that this part will never let you down, even under the heaviest work.
Confirmed Quality: Calculation for 300 A / 3 m
A low voltage drop across the whole circuit is the key to a stable arc. That is why we show the calculation openly.
Step 1: The Data
- Welding current (I): 300 A
- Total circuit length (L): 6 m (3 m electrode cable plus 3 m earth cable)
- Cross section (A): 50 mm²
- Resistivity of copper (ρ): ≈ 0.0175 Ω, mm²/m
Step 2: Resistance (R)
R = (ρ × L) / A = (0.0175 × 6) / 50 = 0.0021 Ω
Step 3: Voltage Drop (ΔU)
ΔU = I × R = 300 A × 0.0021 Ω = 0.63 V
Conclusion
As you can see, a voltage drop of only 0.63 V is a very good result. It means that the cable is designed to deliver the power of 300 A without losses.
In Short, by Choosing This Electrode Holder Cable You Get:
- Readiness for work at 300 A in professional use.
- A firm grip and safety thanks to the solid 300 A holder.
- Minimal power losses and thermal headroom thanks to the thick 50 mm² cable.
- Reliability for years, provided by the hydraulically crimped lug.
I recommend it
Jaroslaw Kolaski MSc Eng, IWE
