CVR-RH-25030 is a non-indicating cover designed for Class H(K) and R modular ferrule fuse blocks rated at 250V with fuse amperage range from 1/2 to 30A. The cover is constructed from thermoplastic material and is compatible with both HM25030 and RM25030 fuse block series, providing protection and safety for panel or electrical system designs. It operates across a temperature range of -40°C to +120°C and meets UL 94HB self-extinguishing flammability requirements. The cover features a snap-fit installation design that works with DIN-Rail and panel-mount configurations, reducing assembly time and labor while maintaining reliable contact between the fuse ferrule and block. This product is ideal for industrial electrical systems requiring compact, modular fuse protection with minimal panel space requirements.