300 AMP Copper Welding Electrode Holder | Arc MMA Welder Clamp

300 AMP Copper Electrode Holder — Built Tough for Arc & MMA Welding

Take your arc and MMA welding projects to the next level with this heavy-duty 300 AMP Copper Welding Electrode Holder. Engineered with a high-quality brass/copper jaw and a professional-grade insulated handle, this electrode clamp delivers rock-solid grip, excellent conductivity, and long-lasting durability — all at an unbeatable price.

Key Features

• High-Capacity 300A Rating: Handles demanding arc and MMA welding tasks with ease, providing reliable current transfer every time.
• Copper/Brass Construction: The heavy jaw is made from premium copper and brass for superior electrical conductivity and corrosion resistance.
• Professional Insulated Handle: The ergonomic soft-grip handle is made from high-grade insulation material that dissipates heat quickly — stays cool even during extended welding sessions.
• Easy Cable Connection: Special design allows for fast, simple cable attachment. Includes a free spanner and spacing sheet for added convenience.
• Wide Electrode Compatibility: Accommodates electrode diameters from 5.0 mm to 8.0 mm, making it versatile for a broad range of welding rods.

Specifications

• Current Capacity: 300A
• Max Cable Diameter: 14 mm
• Electrode Diameter Range: 5.0 – 8.0 mm
• Overall Length: Approx. 200 mm / 7.9 in
• Rated Voltage: AC single-phase and DC above 250V
• Material: Copper / Brass with insulated handle
• Country of Origin: Made in China

What's in the Box?

• 1 × 300A Welding Electrode Holder Clamp
• 1 × Free Spanner
• 1 × Spacing Sheet

Safety Note

Always follow proper welding safety practices when operating arc and MMA welding equipment. For guidance on safe welding practices, visit the OSHA Welding, Cutting & Brazing Safety resource.

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Frequently Asked Questions

Q: What types of welding is this 300 AMP electrode holder compatible with?

A: This copper welding electrode holder is designed for use with Arc welding (SMAW) and MMA (Manual Metal Arc) welders. It supports AC single-phase and DC voltages above 250V, making it widely compatible with most standard arc welding machines.

Q: What electrode sizes does this welding clamp support?

A: The heavy jaw electrode holder accommodates electrode diameters ranging from 5.0 mm to 8.0 mm, and supports a maximum cable diameter of 14 mm for flexible setup options.

Q: Will the handle get hot during prolonged welding sessions?

A: No — the handle is made from professional-grade insulation material specifically engineered for fast heat dissipation. It heats up slowly and stays comfortable to hold even during extended use, keeping your hands protected.

Q: Is this electrode holder durable enough for heavy-duty use?

A: Yes. The jaw is constructed from high-quality copper and brass materials, which are known for their strength, electrical conductivity, and resistance to wear and corrosion — making this clamp ideal for both professional and DIY metalworking tasks.