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The Clarke EC500 Earth Clamp 500A is a robust and durable crocodile earth clamp that is rated for use with welders up to 500 Amps. This clamp is a vital piece of equipment to create a complete arc welding circuit so that a good arc and a clean start to welding can be achieved. This clamp benefits from a braided copper shunt that connects either side of the clamp, ensuring that a good connection to the earth cable is always achieved.