Mersen Ferraz Shawmut Amp-Trap® Time Delay Fuse, Current Limiting Low Voltage, Series: A4BY, Non-Indicating, Rejection, 800 A, 600 VAC/300 VDC, 200/100 kA Interrupt, Class: L, 4 s at 500% Response, Blade Terminal, Bolt-On Mounting, Cylindrical Body, Dual Element, Fiber, 2-1/2 in Dia x 8-5/8 in L Body