Mersen Ferraz Shawmut Fuse Block, Open Style, 250 VAC, 200 A, 3 Pole, 3, Class: R, Fuse Holder Code: M, Box Lug/Side Clip, 6 AWG to 350 kcmil Wire, Threaded Mount, For Use With: A2D-R, A2K-R and TR-R Series Fuse, Phenolic, 8 in L x 10 in W x 2.9 in H