Characteristic gR, Ceramic body Fuse size 27 x 60 mm, Interrupt rating 50 kA IR DC Rated voltage DC IEC 660 V, Current rating 5 Amps Silver plated copper terminals Striker indicator system, Mersen Protistor series 5 Amp, high speed cylindrical Protistor fuse, with a 660 VDC voltage rating and a built in striker, designed to provide high performance protection for railway power and auxiliary circuits and similar systems. Featuring silver plated copper terminals for improved conductivity, gR characteristics (full range breaking capacity), and interrupt rating of 50 kA and is 27 x 60 mm in size.This DC Semiconductor fuse-link was created to provide the improved performance required by today's demanding DC equipment. Semiconductor fuse-links are typically operated at more elevated temperature than other fuse type, have lower I²t to minimize damage to protected components during short circuits, with lower watt loss and a longer service life.