Ferraz Shawmut TR20R Time Delay Fuse Class RK5

Ferraz Shawmut TR20R Smart Spot Tri-Onic Time Delay Fuse, 20A, 250V, Class RK5. The TR20R is a time-delay fuse in Ferraz Shawmut's Smart Spot Tri-Onic family. It carries a 20 ampere, 250 volt rating and is designated as RK5.