The MARATHON/KULKA 6R30A2S is a robust Class R fuse holder engineered for demanding electrical applications requiring 250/600 Volt ratings. It is UL Listed (IZLT.E35113) and CSA Certified (LR21455), demonstrating compliance with industry safety standards. The fuse holder incorporates a clip, constructed from copper alloy and tin-plated, featuring a patented reject member to prevent improper fuse installation and potential hazards. Available in various amp ratings (30, 60, 100, 200, 400, and 600 amps) and pole configurations, this fuse holder provides versatility for diverse circuit protection needs. Copper box connectors are available for enhanced conductivity and performance.