The input block (P/N 16174E01) of the HPGMT and 20HPGMT fuse panel is mounted from the inside of the panel.  In order for it to be replaced, the terminal must be removed from within the panel.  However, opening the panel would void the warranty, so the input block can only be repaired at Telect's repair facility.  Please contact Telect's Quality department at quality@telect.com for a repair quotation.