Eaton 2664-R Relay

NO.2664-R Non-Indicating Fuse Reducer, Eaton/Bussmann Series, is a single-reducer accessory for Class R fuses used to adapt higher-current ratings to lower-ampacity applications in electrical distribution. It is specified for 250/600 V operation and supports a maximum of 600 A, while accepting Class R fuses in the 225–400 A range. The reducer is non-indicating, meaning there is no fuse-status window, and a single reducer configuration is supported (pair not required). This part is designed for use in panels and switchgear where Bussmann Class R fuses are employed and a reduced fuse rating is needed without altering the enclosure or wiring. As part of the Bussmann/Eaton fuse-reducer family, NO.2664-R is documented in official catalogs and distributor listings under the 250 V and 600 V classes of service.