Brand: Bussmann Item: Fuse block Additional Information: Covers sold separately Mounting: Panel Number of Poles: 3 Voltage Rating: 250V Conductor Size: 4 AWG-600 MCM copper or aluminum Amperage Rating: 400A Accepts Fuse Class: R SCCR Rating: 200kA SCCR Modular: Yes Blown Fuse Indicator: No Multi-Wire: No Conductor Connection Type: Box lug Fuse Connection Type: Clip with reinforced spring Bussmann modular fuse block, accepts R fuses, 400A, 250V, 3-pole, 4 AWG-600 MCM copper or aluminum, box lug, panel mount.