

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 to be inserted.
- Indication offered on most 250V and 600V versions
- DIN 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 R fuse blocks
- Universal mounting holes for easy replacement
- Indication offered on most 250 V and 600 V versions
- One hand release from DIN rail for ferrule style fuses
- Reinforced fuse clips are standard on all Class H and Class R fuse blocks
- Covers available for 100 A and lower to enhance safety
- Both hex and slot set screw options available on 60 Ampere, 600 Volt Class R box lugs
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Part Number | Actions | Fuse Type | Indicating | Agency Approvals |
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Part Number | Actions | Fuse Type | Indicating | Agency Approvals | |
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