The Eska 887123 is a fuse with a time-lag, 4A rating, a 250VAC rating, the TR5 form factor, and a 5.08mm Pitch. It is comprised of a TR5 fuse body and terminals, with a ceramic tube (time-lag) and silver contacts. The fuse is designed for battery protection, as well as general AC line protection, up to 250VAC. It is approved to UL, CSA and VDE standards.