CCMR Series Class CC Dual Element Time Delay Fuse for Short-Circuit Protection of Motor Branch-circuits. For space-saving protection of motor circuits up to 40 HP, we recommend Littelfuse POWR-PRO CCMR series fuses. These fuses are the only true dual-element time-delay CC fuses specifically engineered for motor branch circuit protection. They provide Type II protection (no damage) to both NEMA-rated and the more sensitive IEC (International Electromechanical Commission) type motor circuit components. CCMR series fuses are now available in larger sizes from 35 to 60 amperes! No other 600V fuse is available with this current carrying capacity in a package this small. Compared to other UL Listed fuses, Class CC fuses are the most current limiting, rating for rating. Because they are physically compact, they provide this superior protection in a fraction of the space required by other fuse classes. Applications for motor protection CCMR series; dual-element, time-delay fuses specifically designed to protect motor circuits up to 40 HP and small transformer protection (control power transformers).