Pre-wired - The fuse relay box is pre-wired, completing half of the connection work, which makes the whole connection process easier and saves time. Capacity - This fuse and relay box can hold a maximum of 4 relays and 12 fuses at the same time, creating multiple relays in one box, keeping your circuit clean and tidy. New installation design - The design allows the relay fuse box to be safely installed anywhere. The waterproof fuse relay block is designed to provide a reliable and safe environment for equipment use and keep the connection system clean. It is applicable to cars, trucks, ships, etc. 40A Relay - 12v automotive relay box will be equipped with 4 pieces of 40A 4-pin relays, offering the highest rating to make its application wider and safer. Various Size Fuses - Auto fuse block will also come with 12 pieces ATC/ATO fuses, including 3 x 10A, 3 x 20A, 3 x 25A and 3 x 30A, can meet a wide range. of use requirements. Fuse Relay Box Kit Relay Type: 40A for Relay Fuse Type: ATC