FH 3 Pole Class R Fuse Block

600V CLASS R BLOCK 100A 3 POLE. The new Littelfuse Class H and R blocks offer many advantages over previous generations that are noted in the features and benefits section. Class H and Class R fuse blocks are dimensionally the same, but Class R blocks incorporate a rejection feature, which only allows Class R fuses tobe inserted. Features & Benefits: Indication offered on most 250V and 600V versions. DIN Rail releasable for all non-knife blade style fuses. On