The ABB TRK12B is a Class R fusing kit designed as an accessory for Spec-Setter+ safety switches. It’s made to ensure that only Class R fuses are used where specified, preventing the installation of any other fuse types that might not meet the necessary standards. For 30A or 60A switches, the kit includes replacement fuse clips, while for higher ratings ranging from 100A to 600A, it features rejection pins that attach to the standard fuse clips. This field-installable, UL-listed kit is a practical addition for maintaining safety and compliance in your electrical setup. Distributed by BSP Automation, the TRK12B helps keep your safety switches up to spec with minimal hassle.