The 600 A, 35 kV Connecting Plug from Cooper Power Systems uses a 5/16" hex wrench to tighten it into a de-energized deadbreak connector or mating apparatus. Semiconducting coating provides continuity with semiconducting shield of peroxide cured EPDM rubber of mating parts. Versatile design can be used for connecting two or more 600 A deadbreak connectors or, with a bushing extender, to ease cable training by increasing the distance between an apparatus front plate and 600 A connector.