R-Rated medium voltage fuses are back-up current limiting fuses used in conjunction with medium voltage motors and motor controllers.
The JCR-A is supplied with CutlerHammer Ampgard Hookeye.
This single hookeye is on one end of the fuse and aids in the insertion and removal of the fuse.
Current limiting fuses may be designated as R-Rated if they meet the following requirements: The fuse will safely interrupt all currents between its minimum and maximum interrupting ratings. The fuse will melt in a range of 15 to 35 seconds at a value of 100 times the “R’ number (ANSI C37.46).
Bussmann R-Rated current limiting fuses are designed for use with medium voltage starters to provide short-circuit protection for the motor and motor controller.
These fuses offer a high level of fault current interruption in a self-contained, non-venting package which can be mounted indoors or in an enclosure.