Built for robust electrical distribution, the Square D QBA32100 is a 100A, 3-pole molded case circuit breaker belonging to the PowerPacT Q-Frame series. It utilizes fixed thermal and magnetic trip units to deliver dependable long-time and instantaneous (LI) protection. This unit features an I-Line mounting style, allowing for efficient plug-on installation into Square D I-Line panelboards. Rated at 10kAIC at 240VAC, it also seamlessly replaces older Q23100 models in existing infrastructure.
Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment, Motor Operator
Accessories
Lugs
Standards
CSA C22.2 No. 5, HACR, NEMA AB 1, NOM-003-SCFI-2000, UL 489
Approval
CSA, IEC, NOM, UL
Temp Rating
40C
Construction Features
HACR Rated, Visual Trip Indicator
Product FAQs
7 answers
Which panelboards are compatible with the QBA32100?
This breaker is designed specifically for Square D I-Line panelboards and switchboards. It features a plug-on I-Line line connection and load-side lugs, making it incompatible with standard unit-mount or load center enclosures.
Can the QBA32100 be installed in older legacy I-Line panelboards?
Yes. Schneider Electric designed the PowerPacT Q-frame breakers to be backward compatible. The QBA32100 can be safely installed in existing or older I-Line panelboards and switchboard distribution sections.
Which older Square D breaker does the QBA32100 replace?
The PowerPacT QBA32100 serves as a direct drop-in replacement for the obsolete Square D Q2 series circuit breakers, specifically replacing the legacy Q23100 I-Line model.
What are the specific magnetic trip thresholds for the QBA32100?
While the thermal and magnetic trip elements are fixed, they have specific factory calibration points. The magnetic hold current is 1200A, and the magnetic instantaneous trip current is 2400A.
What is the default phase configuration for the QBA32100 I-Line connection?
This breaker features a standard ABC phase jaw configuration for connection to the panelboard bus.
Is the QBA32100 rated for use on 480V systems?
No. The PowerPacT Q-frame series is rated for a maximum of 240VAC. It is strictly for low-voltage applications and is not suitable for 480V or 600V electrical systems.
How is the wiring terminated on this breaker?
The load side features standard mechanical box lugs that accept 4 AWG to 300 kcmil copper or aluminum conductors. The line side utilizes the plug-on I-Line jaws, meaning no line-side cabling is required for installation.
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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
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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 4.6 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