The Hubbell HBL26521 is a heavy-duty, 60A, 600V, 4-pole, 5-wire grounding flanged receptacle designed for demanding industrial applications. Its spring-loaded safety shutter prevents arcing during mating/unmating and automatically ejects plugs, enhancing safety. The receptacle features box terminals with stainless steel screws for secure terminations and a metallic housing for environmental protection. It is suitable for use in harsh environments and is listed to UL and CSA standards.