Fuse cross-reference and discontinued replacement
Send us the part number stamped on the fuse you are replacing. DENCO manufactures replacements for fuses that are obsolete, discontinued, or no longer supported by their original maker — including medium and high voltage ranges.
Send a part numberCall 1-800-305-FUSE
Equivalences DENCO publishes
These are stated in DENCO’s own catalog, quoted here without alteration. They are the starting point for a conversation, not a substitution instruction — see how we treat equivalence, below.
| Replacing | Brand | DENCO part | DENCO’s wording |
|---|---|---|---|
| CLF | GE | DCLF | This fuse can be substituted for GE CLF and Cooper ELSP designs.p.3 (line card) |
| ELSPCooper Power Systems was acquired by Eaton in 2012; Cooper Bussmann is now sold as Eaton’s Bussmann series. Buyers searching “Bussmann” or “Eaton” are looking for this row. | Cooper | DCLF | This fuse can be substituted for GE CLF and Cooper ELSP designs.p.3 (line card) |
| CBUCCooper Power Systems was acquired by Eaton in 2012; Cooper Bussmann is now sold as Eaton’s Bussmann series. Buyers searching “Bussmann” or “Eaton” are looking for this row. | Cooper | DEFTH | This fuse can be substituted for Cooper CBUC.., Hi-Tech HTSS.., and Mersen 9F59CCF.. designs.p.3 (line card) |
| HTSS | Hi-Tech | DEFTH | This fuse can be substituted for Cooper CBUC.., Hi-Tech HTSS.., and Mersen 9F59CCF.. designs.p.3 (line card) |
| 9F59CCF | Mersen | DEFTH | This fuse can be substituted for Cooper CBUC.., Hi-Tech HTSS.., and Mersen 9F59CCF.. designs.p.3 (line card) |
| 9F60 SeriesThe 9F60 series is now catalogued by Mersen, which is why buyers search both names. DENCO’s catalog names the 9F60 on 17 separate pages. | G.E. | E-Rated Type EJ-1 | Equivalent to G.E. 9F60 Seriesp.49 (E-Rated, Type EJ-1) |
Part families we are regularly asked about
Our catalog references these legacy types. Whether a specific part can be matched depends on its ratings, dimensions and application, which is why every request is reviewed rather than answered from a table.
- 9F60 and 9F62 series — medium-voltage power and potential transformer fuses
- EJ-1, EJO-1, EJ-2, EJ-5, EJO-5 — E-rated, R-rated and capacitor types
- Amp-Trap, Ferraz Shawmut, Gould Shawmut references
- UFR / Form 101 ultra-rapid semiconductor fuses
- Cutout expulsion fuse-links — replaced by current-limiting dropout designs
What to send
- Original manufacturer and part number, exactly as marked
- System voltage, and whether it is AC or DC
- Continuous current and required interrupting rating
- Overall dimensions and how the fuse mounts
- Any indicator or microswitch requirement
- The standard or approval the installation must meet
- A photograph or drawing — this resolves most questions immediately
How we treat equivalence
A cross-reference from DENCO is a candidate for review, not a guarantee of interchangeability. Electrical ratings, physical fit, applicable standards and the protected application are all assessed by our engineering team before any substitution is confirmed. Do not rely on a suggested equivalent until we have reviewed the installation.