Table
Fuse Holder Compatibility by Fuse Class
Fuse Holder Compatibility by Fuse Class reference with assumptions and boundary notes.
Reference boundary
Fuse-holder label reference only. It does not approve replacement, cross-class substitution, interrupting rating, or equipment compatibility.
Reference table
Decode common fuse-holder class markings and the matching fuse class label users should confirm.
| Fuse class | Holder marking | Common holder context | Boundary |
|---|---|---|---|
| Class J | Class J fuse holder | rejection-style cartridge holder reference | holder label reference only; equipment listing and manufacturer data govern compatibility |
| Class CC | Class CC fuse holder | compact rejection holder reference | holder label reference only; equipment listing and manufacturer data govern compatibility |
| Class RK1/RK5 | Class R fuse holder | rejection-style Class R holder reference | holder label reference only; equipment listing and manufacturer data govern compatibility |
| Class L | Class L fuse holder | large cartridge holder reference | holder label reference only; equipment listing and manufacturer data govern compatibility |
Use notes
- Use this table for preliminary reference and arithmetic checks only.
- Confirm equipment ratings, product markings, installation conditions, utility requirements, and the local authority requirements before design or field use.