Ferraz Shawmut Amp-TrapĀ® Time Delay Fuse, Current Limiting, Series: A4BT, Rejection/Non-Rejection: Rejection, 800 A, 600 VAC/500 VDC, 100/200 kA Interrupt, Class: L, 10 sec at 500% Response, Knife Blade Terminal, Bolt-On Mount, Cylindrical Body, GMG, 2-1/2 in Dia x 8-5/8 in L Body Size