Table
Fuse Holder Compatibility by Fuse Class
Fuse Holder Compatibility by Fuse Class lookup table with assumptions and boundary notes.
Scope
Fuse-holder label planning only. It does not approve replacement, cross-class substitution, interrupting rating, or equipment compatibility.
Lookup table
Decode common fuse-holder class markings and the matching fuse class label users should confirm.
Scroll sideways to keep row labels aligned with hidden columns.
| Fuse class | Holder marking | Common holder context | Boundary |
|---|---|---|---|
| Class J | Class J fuse holder | rejection-style cartridge holder lookup | holder label planning only; equipment listing and manufacturer data govern compatibility |
| Class CC | Class CC fuse holder | compact rejection holder lookup | holder label planning only; equipment listing and manufacturer data govern compatibility |
| Class RK1/RK5 | Class R fuse holder | rejection-style Class R holder lookup | holder label planning only; equipment listing and manufacturer data govern compatibility |
| Class L | Class L fuse holder | large cartridge holder lookup | holder label planning only; equipment listing and manufacturer data govern compatibility |
Notes
- Check table values for preliminary lookup and arithmetic checks only.
- Confirm equipment ratings, product markings, installation conditions, utility requirements, and the local authority requirements before design or field use.