BATTGUARD XUNZEL is Compatible with FUSEGUARD Fuse. High DC Current Protection in tight space contraints. Resistant and Suitable for Marine and Salt Environments. Easy to install with a very small size. Insulating Cup to Prevent accidental Shorts included. Nut and washers included to ensure a good contact. Maximum Current: 300A / Voltage: 58Vdc. Cable Terminal Range: M8 - M12. Maximum Battery Terminal Metric: M10.