Providing robust overcurrent protection, the Square D KA26200AC is a 2-pole, 200A molded case circuit breaker. Part of the legacy K-Frame family, it utilizes thermal-magnetic trip technology with long-time and instantaneous (LI) functions for industrial environments. This unit mounts into Square D I-Line panelboards and features an A-C phase connection. For modern applications, it is replaced by the JGA262002. It delivers 25 kAIC at 480VAC and includes the signature Visi-Trip indicator.
This breaker mounts exclusively in Square D I-Line panelboards and switchboards. The proprietary plug-on design is not compatible with standard NQ, NF, or QO load centers.
How does the I-Line mounting system work on this breaker?
The line side features a plug-on jaw mechanism that snaps directly onto the I-Line bus stack, eliminating the need for line-side cables or mounting hardware. The load side utilizes standard mechanical lugs.
What type of wire connections are required for the load side?
The breaker uses mechanical lugs on the load side that accept either aluminum or copper conductors from 4 AWG up to 350 kcmil. Ensure proper torque specifications are followed during installation.
What does the adjustable magnetic trip allow the user to do?
While the thermal overload protection is fixed, the adjustable magnetic trip allows electricians to dial in the instantaneous short-circuit response threshold. This helps achieve proper selective coordination with downstream breakers in the distribution system.
Can the KA26200AC be used in DC applications?
Yes, in addition to its AC ratings, it is certified for use on direct current systems up to 250VDC, providing 10kAIC of fault protection.
What is the modern replacement for the legacy KA26200AC?
The KA26200AC is part of the legacy K-Frame series. In modern Square D systems, it is typically replaced by a PowerPact J-Frame breaker, such as the JGA262002, depending on your specific fault current and panel requirements.
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Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 14 reviews.
Square D KA36150 - 150A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
7/27/26
Square D KA36150
As usual, on time and in great condition!
SJ
Shawn J.
Verified Buyer
Reviewing
Square D KA36225 - 225A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
4/27/26
I Line BreKER
Found exactly what I was looking for. They called and set over specs so I could confirm the fit!
RF
Ron F.
Verified Buyer
Reviewing
Square D KA36100 - 100A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
4/9/26
Multiple orders
I have purchased multiple breakers (of fairly large size) from SuperBreakers and their pricing has been excellent and the delivery time spot on. I would highly recommend them
MF
Matt F.
Verified Buyer
Reviewing
Square D KA36100 - 100A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
8/21/25
Order Messed Up - Breaker Great
I have ordered many breakers through SuperBreakers with no issues until this order. I ordered this breaker and it wasn't shipped. I sent a message and was told that a mistake was make in shipping and that they would next day air the breaker to me. 5 days later (weekend in there) the breaker arrived. Not next day air, but shit happens. Sent the breaker still in the box out with my electrician and received a call from him that the breaker that was sent was a KAL36100 not the KA36100. I reached out to SuperBreakers and was told the correct breaker would be next day aired that day and I was emailed a shipping label to send back the incorrect one. This time it arrived the next day and was installed. This error cost my customer a couple days with out power to a dimmer cabinet and about 2 extra hours of labor, but all was okay in the end. Mistakes happen. The help and quick responses to my emails I received from Mike David showed me enough about this company. I look forward to my next order. Thank you for working this situation out in timely manor.
JH
Joel H.
Verified Buyer
Reviewing
Square D KA36200 - 200A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
8/5/25
Worked As Planned
They had what we needed to match existing equipment, they shipped the same day and we put it right into service, no problems from first phone call to delivery and install.