Ferraz Shawmut Amp-TrapĀ® Time Delay Fuse, Current Limiting, Series: A4BY, Indicating/Non-Indicating: Non-Indicating, Rejection/Non-Rejection: Rejection, 300 A, 600 VAC/300 VDC, 100/200 kA Interrupt, Class: L, 4 sec at 500% Response, Knife Blade Terminal, Bolt-On Mount, Cylindrical Body, Dual Element, GMG, 2 in Dia x 8-5/8 in L Body Size