brush_dorman_series string | bussmann_series string | derived_fields list | edison_series string | fuse_class string | id string | littelfuse_series string | mersen_gould_series string | operating_style string | source string | source_quote string | url string | verified_fields list | voltage_rating string | gec_cefco_series string | mersen_gould_note string |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ABC | ABC | [
"fuse_class",
"operating_style"
] | ABC | 1/4”x1/4” Ceramic | abc-250-125-fast-acting-1-4-x1-4-ceramic | 314 | GAB | Fast-Acting | https://cdn.automationdirect.com/static/specs/efusexref.pdf | 1/4”x1/4” 250/125 ABC ABC ABC GAB – 314 Ceramic Fast-Acting | https://referencesource.org/fuse-cross-reference-by-manufacturer-class/abc-250-125-fast-acting-1-4-x1-4-ceramic/ | [
"brush_dorman_series",
"bussmann_series",
"edison_series",
"littelfuse_series",
"mersen_gould_series",
"voltage_rating"
] | 250/125 | null | null |
MDA | MDA | [
"fuse_class",
"operating_style"
] | MDA | 1/4”x1/4” Ceramic | mda-250-time-delay-1-4-x1-4-ceramic | 326 | null | Time-Delay | https://cdn.automationdirect.com/static/specs/efusexref.pdf | 1/4”x1/4” 250 MDA MDA MDA – – 326 Ceramic Time-Delay | https://referencesource.org/fuse-cross-reference-by-manufacturer-class/mda-250-time-delay-1-4-x1-4-ceramic/ | [
"brush_dorman_series",
"bussmann_series",
"edison_series",
"littelfuse_series",
"voltage_rating"
] | 250 | null | null |
AGC | AGC | [
"fuse_class",
"operating_style"
] | AGC | 1/4”x1/4”Glass | agc-250-32-fast-acting-1-4-x1-4-glass | 312 | GGC | Fast-Acting | https://cdn.automationdirect.com/static/specs/efusexref.pdf | 1/4”x1/4”Glass 250/32 AGC AGC AGC GGC – 312 | https://referencesource.org/fuse-cross-reference-by-manufacturer-class/agc-250-32-fast-acting-1-4-x1-4-glass/ | [
"brush_dorman_series",
"bussmann_series",
"edison_series",
"littelfuse_series",
"mersen_gould_series",
"voltage_rating"
] | 250/32 | null | null |
MDL | MDL | [
"fuse_class",
"operating_style"
] | MDL | 1/4”x1/4”Glass | mdl-250-32-time-delay-1-4-x1-4-glass | 313 | GDL | Time-Delay | https://cdn.automationdirect.com/static/specs/efusexref.pdf | 1/4”x1/4”Glass 250/32 MDL MDL MDL GDL – 313 | https://referencesource.org/fuse-cross-reference-by-manufacturer-class/mdl-250-32-time-delay-1-4-x1-4-glass/ | [
"brush_dorman_series",
"bussmann_series",
"edison_series",
"littelfuse_series",
"mersen_gould_series",
"voltage_rating"
] | 250/32 | null | null |
GMA | GMA | [
"fuse_class",
"operating_style"
] | GMA | 5x20 mm Glass | gma-250-125-fast-acting-5x20-mm-glass | 235 | GGM | Fast-Acting | https://cdn.automationdirect.com/static/specs/efusexref.pdf | 5x20 mm Fast-Acting 250/125 GMA GMA GMA GGM – 235 | https://referencesource.org/fuse-cross-reference-by-manufacturer-class/gma-250-125-fast-acting-5x20-mm-glass/ | [
"brush_dorman_series",
"bussmann_series",
"edison_series",
"littelfuse_series",
"mersen_gould_series",
"voltage_rating"
] | 250/125 | null | null |
GMC | GMC | [
"fuse_class",
"operating_style"
] | GMC | 5x20 mm Glass | gmc-250-125-medium-time-delay-5x20-mm-glass | null | GSC | Medium Time-Delay | https://cdn.automationdirect.com/static/specs/efusexref.pdf | Glass Medium Time-Delay 250/125 GMC GMC GMC GSC – – | https://referencesource.org/fuse-cross-reference-by-manufacturer-class/gmc-250-125-medium-time-delay-5x20-mm-glass/ | [
"brush_dorman_series",
"bussmann_series",
"edison_series",
"mersen_gould_series",
"voltage_rating"
] | 250/125 | null | null |
BDB | GDB | [
"fuse_class",
"operating_style"
] | S500 | 5x20 mm Glass | s500-250-fast-acting-5x20-mm-glass | 217 | GSB | Fast-Acting | https://cdn.automationdirect.com/static/specs/efusexref.pdf | 5x20 mm Fast-Acting 250 S500 BDB GDB GSB – 217 | https://referencesource.org/fuse-cross-reference-by-manufacturer-class/s500-250-fast-acting-5x20-mm-glass/ | [
"brush_dorman_series",
"bussmann_series",
"edison_series",
"littelfuse_series",
"mersen_gould_series",
"voltage_rating"
] | 250 | null | null |
BDC | GDC | [
"fuse_class",
"operating_style"
] | S506 | 5x20 mm Glass | s506-250-time-delay-5x20-mm-glass | 218 | GDG | Time-Delay | https://cdn.automationdirect.com/static/specs/efusexref.pdf | Glass Time-Delay 250 S506 BDC GDC GDG – 218 | https://referencesource.org/fuse-cross-reference-by-manufacturer-class/s506-250-time-delay-5x20-mm-glass/ | [
"brush_dorman_series",
"bussmann_series",
"edison_series",
"littelfuse_series",
"mersen_gould_series",
"voltage_rating"
] | 250 | null | null |
null | LP-CC | [
"fuse_class",
"operating_style"
] | EDCC | CC | edcc-600-time-delay-cc | CCMR | ATDR | Time-Delay | https://cdn.automationdirect.com/static/specs/efusexref.pdf | Time-Delay 600 EDCC – LP-CC ATDR – CCMR | https://referencesource.org/fuse-cross-reference-by-manufacturer-class/edcc-600-time-delay-cc/ | [
"bussmann_series",
"edison_series",
"littelfuse_series",
"mersen_gould_series",
"voltage_rating"
] | 600 | null | null |
HCLR | KTK-R | [
"fuse_class",
"operating_style"
] | HCLR | CC | hclr-600-fast-acting-cc | KLKR | ATMR | Fast-Acting | https://cdn.automationdirect.com/static/specs/efusexref.pdf | Fast-Acting 600 HCLR HCLR KTK-R ATMR CTK-R KLKR | https://referencesource.org/fuse-cross-reference-by-manufacturer-class/hclr-600-fast-acting-cc/ | [
"brush_dorman_series",
"bussmann_series",
"edison_series",
"gec_cefco_series",
"littelfuse_series",
"mersen_gould_series",
"voltage_rating"
] | 600 | CTK-R | null |
null | FNQ-R | [
"fuse_class",
"operating_style"
] | HCTR | CC | hctr-600-time-delay-cc | KLDR | ATQR | Time-Delay | https://cdn.automationdirect.com/static/specs/efusexref.pdf | CC Time-Delay 600 HCTR – FNQ-R ATQR – KLDR | https://referencesource.org/fuse-cross-reference-by-manufacturer-class/hctr-600-time-delay-cc/ | [
"bussmann_series",
"edison_series",
"littelfuse_series",
"mersen_gould_series",
"voltage_rating"
] | 600 | null | null |
null | LPJ | [
"fuse_class",
"operating_style"
] | JDL | J | jdl-600-time-delay-dual-element-j | JTD | AJT | Time-Delay Dual Element | https://cdn.automationdirect.com/static/specs/efusexref.pdf | Time-Delay Dual 600 JDL – LPJ AJT – JTD Element | https://referencesource.org/fuse-cross-reference-by-manufacturer-class/jdl-600-time-delay-dual-element-j/ | [
"bussmann_series",
"edison_series",
"littelfuse_series",
"mersen_gould_series",
"voltage_rating"
] | 600 | null | null |
null | DFJ | [
"fuse_class",
"operating_style"
] | JHL | J | jhl-600-high-speed-ac-drive-j | null | HSJ | High-Speed AC Drive | https://cdn.automationdirect.com/static/specs/efusexref.pdf | High-Speed AC 600 JHL – DFJ HSJ – – Drive | https://referencesource.org/fuse-cross-reference-by-manufacturer-class/jhl-600-high-speed-ac-drive-j/ | [
"bussmann_series",
"edison_series",
"mersen_gould_series",
"voltage_rating"
] | 600 | null | null |
LCU | KTU | [
"fuse_class",
"operating_style"
] | LCU | L | lcu-600-fast-acting-l | LDC | A4BY | Fast-Acting | https://cdn.automationdirect.com/static/specs/efusexref.pdf | L Fast-Acting 600 LCU LCU KTU A4BY CL, CLU LDC | https://referencesource.org/fuse-cross-reference-by-manufacturer-class/lcu-600-fast-acting-l/ | [
"brush_dorman_series",
"bussmann_series",
"edison_series",
"gec_cefco_series",
"littelfuse_series",
"mersen_gould_series",
"voltage_rating"
] | 600 | CL, CLU | null |
MCL | KTK | [
"fuse_class",
"operating_style"
] | MCL | Midget | mcl-600-fast-acting-midget | KLK | ATM | Fast-Acting | https://cdn.automationdirect.com/static/specs/efusexref.pdf | 600 MCL MCL KTK ATM CTK KLK Fast-Acting | https://referencesource.org/fuse-cross-reference-by-manufacturer-class/mcl-600-fast-acting-midget/ | [
"brush_dorman_series",
"bussmann_series",
"edison_series",
"gec_cefco_series",
"littelfuse_series",
"mersen_gould_series",
"voltage_rating"
] | 600 | CTK | null |
MEN | FNM | [
"fuse_class",
"operating_style"
] | MEN | Midget | men-250-time-delay-midget | FLM | TRM | Time-Delay | https://cdn.automationdirect.com/static/specs/efusexref.pdf | Time-Delay 250 MEN MEN FNM TRM – FLM | https://referencesource.org/fuse-cross-reference-by-manufacturer-class/men-250-time-delay-midget/ | [
"brush_dorman_series",
"bussmann_series",
"edison_series",
"littelfuse_series",
"mersen_gould_series",
"voltage_rating"
] | 250 | null | null |
MEQ | FNQ | [
"fuse_class",
"operating_style"
] | MEQ | Midget | meq-500-time-delay-midget | FLQ | ATQ | Time-Delay | https://cdn.automationdirect.com/static/specs/efusexref.pdf | Midget 500 MEQ MEQ FNQ ATQ – FLQ Time-Delay | https://referencesource.org/fuse-cross-reference-by-manufacturer-class/meq-500-time-delay-midget/ | [
"brush_dorman_series",
"bussmann_series",
"edison_series",
"littelfuse_series",
"mersen_gould_series",
"voltage_rating"
] | 500 | null | null |
MOL | BAF/BAN | [
"fuse_class",
"operating_style"
] | MOL | Midget | mol-250-fast-acting-midget | BLF | OTM | Fast-Acting | https://cdn.automationdirect.com/static/specs/efusexref.pdf | Fast-Acting 250 MOL MOL BAF/BAN OTM – BLF Midget | https://referencesource.org/fuse-cross-reference-by-manufacturer-class/mol-250-fast-acting-midget/ | [
"brush_dorman_series",
"bussmann_series",
"edison_series",
"littelfuse_series",
"mersen_gould_series",
"voltage_rating"
] | 250 | null | null |
null | LPN-RK-SP | [
"fuse_class",
"operating_style"
] | LENRK | RK1 | lenrk-250-time-delay-dual-element-rk1 | LLNRK | A2DR | Time-Delay Dual Element | https://cdn.automationdirect.com/static/specs/efusexref.pdf | Time-Delay Dual 250 LENRK – LPN-RK-SP A2DR – LLNRK RK1 | https://referencesource.org/fuse-cross-reference-by-manufacturer-class/lenrk-250-time-delay-dual-element-rk1/ | [
"bussmann_series",
"edison_series",
"littelfuse_series",
"mersen_gould_series",
"voltage_rating"
] | 250 | null | null |
null | LPS-RK-SP | [
"fuse_class",
"operating_style"
] | LESRK | RK1 | lesrk-600-time-delay-dual-element-rk1 | LLSRK | A6DR | Time-Delay Dual Element | https://cdn.automationdirect.com/static/specs/efusexref.pdf | RK1 Element 600 LESRK – LPS-RK-SP A6DR – LLSRK | https://referencesource.org/fuse-cross-reference-by-manufacturer-class/lesrk-600-time-delay-dual-element-rk1/ | [
"bussmann_series",
"edison_series",
"littelfuse_series",
"mersen_gould_note",
"mersen_gould_series",
"voltage_rating"
] | 600 | null | Not dual element 110–600Amp |
null | FRN-R | [
"fuse_class",
"operating_style"
] | ECNR | RK5 | ecnr-250-time-delay-dual-element-rk5 | FLNR | TR | Time-Delay Dual Element | https://cdn.automationdirect.com/static/specs/efusexref.pdf | Time-Delay Dual 250 ECNR – FRN-R TR – FLNR RK5 | https://referencesource.org/fuse-cross-reference-by-manufacturer-class/ecnr-250-time-delay-dual-element-rk5/ | [
"bussmann_series",
"edison_series",
"littelfuse_series",
"mersen_gould_series",
"voltage_rating"
] | 250 | null | null |
null | FRS-R | [
"fuse_class",
"operating_style"
] | ECSR | RK5 | ecsr-600-time-delay-dual-element-rk5 | FLSR | TRS | Time-Delay Dual Element | https://cdn.automationdirect.com/static/specs/efusexref.pdf | RK5 Element 600 ECSR – FRS-R TRS – FLSR | https://referencesource.org/fuse-cross-reference-by-manufacturer-class/ecsr-600-time-delay-dual-element-rk5/ | [
"bussmann_series",
"edison_series",
"littelfuse_series",
"mersen_gould_series",
"voltage_rating"
] | 600 | null | null |
null | JJN | [
"fuse_class",
"operating_style"
] | TJN | T | tjn-300-extremely-fast-acting-t | JLLN | A3T | Extremely Fast-Acting | https://cdn.automationdirect.com/static/specs/efusexref.pdf | Extremely Fast- 300 TJN – JJN A3T – JLLN T | https://referencesource.org/fuse-cross-reference-by-manufacturer-class/tjn-300-extremely-fast-acting-t/ | [
"bussmann_series",
"edison_series",
"littelfuse_series",
"mersen_gould_series",
"voltage_rating"
] | 300 | null | null |
null | JJS | [
"fuse_class",
"operating_style"
] | TJS | T | tjs-600-extremely-fast-acting-t | JLLS | A6T | Extremely Fast-Acting | https://cdn.automationdirect.com/static/specs/efusexref.pdf | T Acting 600 TJS – JJS A6T – JLLS | https://referencesource.org/fuse-cross-reference-by-manufacturer-class/tjs-600-extremely-fast-acting-t/ | [
"bussmann_series",
"edison_series",
"littelfuse_series",
"mersen_gould_series",
"voltage_rating"
] | 600 | null | null |
Low-voltage fuse cross-reference by UL class and manufacturer
Canonical, always-current version: https://referencesource.org/fuse-cross-reference-by-manufacturer-class/ Machine-readable: https://referencesource.org/fuse-cross-reference-by-manufacturer-class/data.json — this mirror is a point-in-time copy.
- Last verified: 2026-08-31
- Stale after: 2028-08-30 (past this date, prefer the canonical copy — it re-verifies on a cadence this snapshot does not)
- Records: 24
Which fuse catalog series from each major manufacturer (Edison, Brush/Dorman, Bussmann, Mersen/Gould, GEC/CEFCO, Littelfuse) is the interchangeable equivalent for a given UL fuse class (CC, RK1, RK5, J, T, L, Midget, ceramic/glass supplementals). One record is one fuse type/class/voltage combination, with each manufacturer's series designation printed against it, plus the amp rating that must be added to complete the catalog number. Answers 'what is the Bussmann equivalent of a Littelfuse KLKR fuse', 'I have an old panel fused with Gould A2D fuses, what do I replace them with', 'what class is an FRN-R fuse'. There is no federal or UL-published cross-reference; each manufacturer prints only its own outbound mapping (its series vs everyone else's), never a neutral grid, and distributor sites that do publish one (Bussmann's own cross-reference tool, Mersen's own page) still favour their own house brand and are JS-driven lookup tools rather than a static table a reader or an assistant can scan in one place.
Provenance — what every record carries
Every record carries source (the URL the value was read from) and
source_quote (a verbatim quote from that page stating it). A value you
cannot check against its page is indistinguishable from an invented one;
these can all be checked. Each record is also individually addressable on
the canonical site at its url.
Licence position
Facts extracted from a distributor's published cross-reference catalog (a factual compilation of manufacturer part-number equivalences), with a short attributed quote and a link back. Part-number cross-references are facts, not creative expression.
Facts are not copyrightable; what this dataset takes from each source is a fact plus a short attributed quote linking back to the page that states it.
Sources
- https://cdn.automationdirect.com/static/specs/efusexref.pdf
- https://cdn.automationdirect.com/static/specs/efuserk1.pdf
Fields
See any record in data/records.jsonl — field names are self-describing,
and the canonical page for each record renders them with labels:
https://referencesource.org/fuse-cross-reference-by-manufacturer-class/
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