The Marathon/Kulka 6J30A2S is a Class J fuse holder engineered for demanding electrical applications requiring 600V operation. It is tested and approved for a 200,000 Amp withstand rating and short circuit withstand rating, ensuring reliable performance and safety. The holder is UL Listed and CSA Certified, demonstrating compliance with recognized industry standards. It incorporates features like a Cool-Clip design and optional DIN rail mounting for versatile installation. Copper box connectors are available for 30 and 60 amp fuse holders. Contact customer service for stud options and dimensional information.