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Cross-Reference · Square D

Square D KA / KAL — Replacement & Cross-Reference

The Square D KA and KAL are discontinued K-frame molded-case breakers rated to 250 A, common as feeders and MCC mains. The current path is the PowerPact J-frame (JD / JG / JJ / JL), selected by interrupting rating. KAL is the higher-AIC version of the KA frame. Edmundson Industrial sources new-surplus, used-tested, and reconditioned KA / KAL breakers to keep legacy panels running.

Status

BrandSquare D / Schneider Electric
FrameK-frame (KA standard, KAL higher AIC)
Amp rangeto 250 A (nominal — confirm on nameplate)
Poles2, 3
Voltage240 / 480 / 600 VAC by catalog code
InterruptingKA standard, KAL higher AIC — verify at quote
Current replacementPowerPact J-frame (JD / JG / JJ / JL)
Example catalogsKA36150, KAL36250 (decode: frame–poles–voltage–amps; confirm on nameplate)

Cross-Reference

If you have (obsolete)Recommended pathNotes
KA (standard AIC)PowerPact JD / JG by amp & AICMatch the interrupting rating to the available fault current.
KAL (higher AIC)PowerPact JJ / JLKAL is the high-interrupting version — keep the AIC at or above the original.
Keep the panel as-builtNew-surplus / used-tested KA or KAL (we source)True drop-in. Match poles, voltage, amp, and AIC on the full catalog string.
MCC main or feederLike-for-like surplusAvoids re-terminating bus and cable on an existing bucket or panel.

Cross-references are starting points — confirm interrupting rating, poles, voltage, trip type, and mounting before substituting. Send the catalog number and we'll verify the match.

Key Specs (frame overview)

Is the Square D KA / KAL still made?

No. KA and KAL are discontinued; the PowerPact J-frame is the current equivalent. KA-class breakers anchor a huge installed base of 150–250 A feeders and MCC mains, so numbers like KAL36250 and KA36150 stay in steady surplus demand. Because re-terminating a 250 A feeder is real work, a surplus drop-in usually beats a retrofit until a planned upgrade.

FAQ

Is the Square D KA / KAL discontinued?
Yes — the KA and KAL frames are discontinued. New-surplus, used-tested, and reconditioned units remain available through Edmundson Industrial.
What is the difference between KA and KAL?
Same K-frame and amp range; KAL carries a higher interrupting rating (AIC). Match or exceed the original AIC when cross-referencing.
What replaces a Square D KA breaker?
The PowerPact J-frame (JD / JG / JJ / JL), selected by amp and interrupting rating. We also source original KA / KAL surplus.
Can you source KA36150 or KAL36250?
Yes — both are common catalog numbers on the surplus market. Send the exact string and we'll quote new-surplus, used-tested, or reconditioned with condition disclosed.
Will a PowerPact J-frame fit my KA application?
Unit-mount usually adapts; check lug size and mounting. Our fabrication side makes adapter and filler hardware where the footprint changed.

Availability & Quote

Condition always disclosed before sale — new-surplus, used-tested, or reconditioned — with photos on request.

Request a Quote

or send the catalog number to sales@edmundsonindustrial.com · (832) 975-8827 · Houston, TX. Same-day response on most requests.

Related Square D pages

Send the catalog number off the breaker.

Condition disclosed before sale. Same-day response on most requests.

Request a Quote