Blue Sea Systems - ST-Blade Battery Terminal Mount Fuse Block - 5023. Features: Easy to install 4 ATO/ATC fused circuits Mounts on the battery terminal stud 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 3/8" [M10] stud Screw Terminal Type: #8-32 Screws with captive star lock washer WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.