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Cross-Reference

Obsolete Circuit Breakers: Replacement & Cross-Reference Sourcing

Edmundson Industrial in Houston, Texas is an independent supplier of obsolete molded-case circuit breakers from Square D, Eaton / Cutler-Hammer, GE, Westinghouse and Siemens / ITE. Send the full part number and a nameplate photo; condition, price and lead time are confirmed on the quote.

When a molded-case breaker is discontinued, you have two moves: cross-reference to the manufacturer's current frame, or drop in a surplus unit of the original to keep the panel as-built. Edmundson Industrial sources discontinued and legacy breakers across Square D, Eaton / Cutler-Hammer, GE, Westinghouse, and Siemens / ITE in new-surplus, used-tested, and reconditioned condition, disclosed before sale. When the modern replacement doesn't share the old footprint, our fabrication side builds the adapter brackets, filler plates, and bus work to make it fit.

Start here: brand cross-reference hubs

BrandCommon obsolete framesStatus
Square DFA / FAL, KA / KAL, LA, HDA / HJA, MA / MH, I-LineSquare D cross-reference
Eaton / Cutler-HammerEHD, FD, HFD, KD, GHB, Series CEaton cross-reference
GETED, TEY, TEC, Spectra (SE / SG)GE cross-reference
WestinghouseFB, KB, LB, Tri-Pac (now Eaton)Westinghouse cross-reference
Siemens / ITEED, FD, BQD, SentronSiemens cross-reference

The most-requested obsolete numbers are industrial molded-case frames: LA36400 (400A), KAL36250 (250A), HJA36100 (100A), FA32100: low Google volume, high buyer intent, and an active surplus market. We source by family and win on availability, not search traffic.

How does obsolete breaker sourcing work?

  1. Pull the catalog number off the breaker face or the panel schedule: the full string, not just the frame letters.
  2. Decide: surplus drop-in or retrofit. A surplus original keeps the panel as-built with no bus or lug rework. A current-frame retrofit is the long-term path; plan it at a stop.
  3. Send it to us. We quote condition, price, and lead time: timing confirmed with the request. If the modern breaker doesn't fit the old opening, our fabrication side makes the adapter and filler hardware so it lands in the legacy footprint.

Condition, disclosed before sale

We supply breakers as new-surplus (unused, from the secondary market), used-tested, or reconditioned to industry practice. Which one you're getting is stated up front, with photos on request.

Beyond breakers

Running obsolete controls too? See our Allen-Bradley PLC & drive cross-reference for MicroLogix, SLC 500, and PowerFlex replacements.

Frame-specific guides

Request a Quote

Request a Quote

or send the catalog number or a photo of the breaker to sales@edmundsonindustrial.com · (832) 975-8827 · Houston, TX. Response timing is confirmed with the request. Line down? Say so in the subject line.

Related cross-reference pages

Send the catalog number off the breaker.

Condition disclosed before sale. Response timing is confirmed with the request.

Request a Quote

Buyer questions

Which brands of obsolete circuit breakers does Edmundson Industrial source?

Edmundson Industrial sources Square D, Eaton / Cutler-Hammer, GE, Westinghouse and Siemens / ITE molded-case circuit breakers, including bolt-on and I-Line styles.

What should I send for an obsolete breaker quote?

Send the full catalog number from the breaker face or panel schedule and a clear photo of the breaker label. Include quantity and the panel or equipment details so the replacement requirement can be reviewed.

Can Edmundson Industrial quote an original breaker or a current replacement?

EI reviews the request for a surplus original or a cross-reference to a current frame. The full catalog number and panel details matter because a modern replacement may not share the original footprint.

What condition are obsolete circuit breakers supplied in?

Breakers may be new-surplus, used-tested or reconditioned, with condition disclosed before sale and photos on request. Condition, price and lead time are stated on the quote.

What if a replacement breaker does not fit the existing panel?

EI fabrication work includes adapter plates, mounting brackets, filler plates and bus extensions for replacement installations. Include the breaker and panel details with the quote request.