lot of 2 

Cooper Bussmann HAC-R-45  Time Delay Low Voltage Fuses

HAC-R-45, Cooper Bussmann, HAC-R, type HAC-R, Class R,low voltage fuse, 0.81" diameter, 45A, 250Vac/125Vdc, 200kA@250V, dual element, current-limiting, time-delay fuses