Littelfuse CCMR030 30A 600VAC 500VDC cylindrical time-delay melamine fuse

30 A Class CC fuse for industrial circuits

The Littelfuse CCMR030 is a cylindrical, time-delay fuse rated 30 A at 600 V AC and 500 V DC. It carries a 200 kA interrupt rating at 600 V AC and 20 kA at 500 V DC. The melamine body measures 1-1/2 in long by 13/32 in diameter and fits standard Class CC fuse blocks such as the L600C series. It is UL Listed to UL 248/248-4, CSA certified, CE marked and RoHS compliant.

Fits Class CC holders and frees panel space

The rejection-style dimensions prevent insertion into non-Class-CC clips, ensuring correct coordination. Dual-element construction allows temporary inrush currents to pass without nuisance opening while still clearing sustained overloads. Because it matches the Bussmann LP-CC, Mersen ATDR and equivalent CCMR series, it can replace those parts directly in existing panels without redesigning the fuse-block layout.

Time-delay action handles motor starts

Under sustained overload the element melts predictably, while the time-delay characteristic absorbs typical motor-starting or transformer-magnetising currents. The high 200 kA AC interrupt capacity safely clears severe faults in industrial power-distribution equipment. Buyers who need indicating versions, higher voltage ratings or different ampere values cannot use this specific device.