Blue Sea Systems ST Blade Battery Terminal Mount Fuse Block The Blue Sea ST Blade Battery Fuse Block mounts on the battery terminal stud and includes an insulating cover. Features Easy to install 4 ATOATC fused circuits Screw terminals for securing wires Four nylon insulated ring terminals included Insulating cover included Accepts small format circuit labels Includes 1 fuse Specifications Circuits 4 Maximum Amperage 100A per block 30A per circuit Maximum Voltage 32V DC Mounting Clearance for 3