ZCASE® BMZ Battery Mount Fuse Holders Littelfuse ZCASE® BMZ Battery Mount Fuse Holders allow users to mount fusing directly to a post-style battery terminal. Littelfuse ZCASE BMZ Fuse Holders accept 80A to 600A Littelfuse ZCASE fuses. These fuse holders mount directly to the battery with no need for additional mounting hardware. The series is available in 2- or 3-pole versions. BMZ Fuse Holders feature a compact design that saves space and eliminates the need to wire in a separate fuse holder or power-distribution module.