Circuit Breaker Cross-Reference Guide — Find Compatible Replacements

Why Cross-Reference Matters

Manufacturers discontinue breaker models regularly. When a breaker fails in an older panel, the original catalog number may no longer be in production. A cross-reference identifies a currently available breaker that is electrically and mechanically compatible with the original.

Common Square D Cross-References

Square D has consolidated many older series into current equivalents:

FA series → HDA series (current equivalent) FH series → HDA series FY series → HDA series KA series → HKA series LA series → HLA series MA series → HMA series

The HFD3 series (I-Line plug-in) replaces many older F-Frame breakers in I-Line panels.

Common Eaton/Cutler-Hammer Cross-References

Eaton has absorbed several brands over the years:

Cutler-Hammer (C-H) breakers → Eaton CH series (direct replacement) Westinghouse breakers → Eaton BR series (for residential panels) Westinghouse industrial → Eaton HFD/HJD series ITE/Gould breakers → Siemens series (Siemens acquired ITE)

Eaton's Type BR breakers are listed as replacements for many older Westinghouse residential panels.

Finding a Cross-Reference

The best way to find a cross-reference is to: 1. Note the original catalog number from the breaker 2. Note the panel brand and model 3. Call AllBreakerSales.com at (951) 903-9804 — our cross-reference tools can identify candidates; confirm the final selection against the physical nameplate, panel label, manufacturer documentation, and written quote 4. Use the Cross-Reference tool at AllBreakerSales.com

We can identify compatible replacements for discontinued breakers from Square D, Eaton, Siemens, GE, Westinghouse, ITE, Federal Pacific, and more.

Important: Listed vs. Unlisted Substitutions

A cross-reference replacement must be UL-listed for use in the specific panel. Using an unlisted substitute — even one that physically fits — voids the panel's UL listing and may violate the NEC. Always verify the replacement is specifically listed for your panel.