The new Littelfuse Class H blocks offer many advantages over previous generations that are noted in the
Benefits
V versionsDIN Rail releasable for all non-knife blade style fuses Only one hand is required to release from DIN: Rail (lock open lock closed)
Universal mounting holes make for easy replacement Clip designs maximize electrical contact and minimize heat rise Reinforcing clips are standard on all: Class H fuse blocks rated 100 amp and higher.
Note: For reinforcing clips on Class H blocks rated 30-60 amp, add "R" suffix to connector type