Phoenix Contact 3036807 Before replacing a fuse plug, disconnect the fuse connector from the main terminal block to ensure safe disconnection and prevent any accidental connections or electrical shocks. The specified fuse plug characteristics include a nominal voltage of 500 V, a nominal current rating of 6.3 A, and a connection method that involves plugging the fuse into place. Specifically, this fuse type is designated as G / 5 x 20 and features a black color, indicating its designation for safe handling and installation in electrical systems.