The Square D QBA222252 is a 2 Pole thermal magnetic molded case circuit breaker with a current rating of 225 Amps and a voltage rating of 240VAC. It has an interrupting rating of 10kAIC at 240VAC. The QBA222252 has an I-Line style plug-in connection type and includes long time and instantaneous trip functions.
What panelboards are compatible with the QBA222252 circuit breaker?
The QBA222252 is designed exclusively for use in Square D I-Line panelboards and switchboards. It features an I-Line style plug-in connection and cannot be used in standard load centers or unit-mount applications.
What wire sizes and materials do the lugs on the QBA222252 accept?
The factory-installed load lugs on this breaker accept wire sizes ranging from 4 AWG to 300 kcmil. They are rated for both aluminum and copper conductors.
What does the LI trip function indicate on this PowerPacT Q-Frame breaker?
The LI designation means this thermal-magnetic breaker provides fixed Long-Time (L) overload protection and fixed Instantaneous (I) short-circuit protection. It does not feature adjustable trip settings.
How much panel space does this 2-pole Q-Frame I-Line breaker require?
The QBA222252 requires 3 inches of mounting space in an I-Line panelboard. Q-Frame breakers occupy 1.5 inches of width per pole.
Is the QBA222252 a direct replacement for older Square D Q2 series breakers?
Yes, the PowerPacT Q-Frame series serves as a direct replacement for legacy Square D Q2 series circuit breakers that utilize the same I-Line plug-in mounting configuration.
Does the QBA222252 include a push-to-trip feature for testing?
Yes, PowerPacT Q-Frame circuit breakers include an integral push-to-trip button on the cover. This allows you to manually trip the breaker to verify the mechanical operation of the tripping mechanism.
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Reviews
Review summary
Customers rate this product 4.6 out of 5 based on 12 reviews.
Square D QBA32125 - 125A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
8/7/26
Fast, Easy and Great Item
I bought this item for the first time and it was great! through the website it was easy to find my exact item and also the payment was easy to submit, deliver was on point.
Great company and products.
KP
Kevin P.
Verified Buyer
Reviewing
Square D QBA32200 - 200A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
6/5/26
Sq D I line breaks
Great price and is exactly what was discribed
DD
David D.
Verified Buyer
Reviewing
Square D QBA32110 - 110A 3 Pole Molded Case Circuit Breaker
I do not recommend this product
Rated 1 out of 5 stars
1/20/26
Breaker
Need to return this item.
DM
Dave M.
Verified Buyer
Reviewing
Square D QBA32150 - 150A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
11/12/25
Excellent All Around
Speedy shipping and great staff to work with.
DB
Doug B.
Reviewing
Square D QBA32200 - 200A 3 Pole Molded Case Circuit Breaker