The 0031.2321 is a slotted cap designed for use with the FUA series of shock-safe, vertical PCB-mount fuseholders. It is specifically intended to secure a 6.3 x 32 mm fuse-link. When paired with the corresponding FUA holder, the complete assembly provides IP40 protection and supports high-performance applications with ratings up to 600V and 30A (UL/CSA). The system features a high power acceptance of 4W at 16A and is suitable for an ambient temperature range of -40°C to 85°C. This makes it ideal for use in industrial equipment, including devices with three-phase power supplies.