Skip to main content
Expedited shipping available at checkout

Square D QGA32125 Molded Case Circuit Breaker

  • 125A
  • 3 Pole
  • I-Line
Square D QGA32125
Molded Case Circuit Breaker
Brand Square D
SKU QGA32125
Select Item Condition
Earn 1449 SuperPoints
  • 125A
  • 3 Pole
  • I-Line

Quantity

Bulk Pricing
Send your parts list for a volume quote.
QGA32125

Square D QGA32125 - 125A 3 Pole Molded Case Circuit Breaker

New

$1,449.00 In Stock

Quantity

Similar Items

Description

Built for heavy-duty industrial applications, this 125A molded case circuit breaker provides fixed thermal and magnetic (LI) protection. The QG designation signifies a 65kAIC rating at 240VAC, ensuring reliable fault clearing in high-capacity networks. Designed with an ABC phase connection, it integrates smoothly into Square D I-Line panelboards and switchboards. Facility managers can utilize this PowerPacT Q-Frame model to upgrade aging infrastructure or replace legacy Q23125 components.

Specifications

Key specifications
Brand Square D
Part Number QGA32125
Series QGA
Amperage 125A
Poles 3
Mounting Style I-Line
Voltage 208Y/120VAC, 240VAC
Phase 3
AIC Rating 65kA @ 208Y/120VAC, 65kA @ 240VAC
Fit and installation
Terminal Type Lugs
For Use With Square D I-Line Panelboards, Square D I-Line Switchboards
Wire Gauge 4 AWG - 300 kcmil
Max Wire 300 kcmil
Min Wire 4 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Fixed Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment
Accessories Load Side Lugs Included
Standards CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489
Approval CSA, IEC, NOM, UL
Temp Rating -25C to 70C
Construction Features HACR Rated, Visual Trip Indicator, Non-Interchangeable Trip, Quick-Make/Quick-Break, Trip-Free Mechanism, High Interrupting Capacity

Product FAQs

5 answers
What panelboards are compatible with the QGA32125 circuit breaker?

This breaker features an I-Line plug-on connection and is exclusively designed for Square D I-Line panelboards and switchboards. It will not fit in standard QO residential load centers or NQ and NF series panelboards.

Can I use the QGA32125 to replace an older Square D breaker?

Yes, Schneider Electric PowerPacT Q-frame circuit breakers like the QGA32125 serve as direct replacements for legacy Square D Q2 Series I-Line circuit breakers.

Are the lugs on this breaker compatible with aluminum wiring?

Yes, the factory-installed load lugs accept both copper and aluminum (AL/CU) conductors. The supported wire size ranges from 4 AWG to 300 kcmil.

Does this I-Line breaker require wire connections on both the line and load sides?

No. As an I-Line breaker, the QGA32125 features a plug-on line connection that seats directly onto the panelboard bus stack. Mechanical lugs are only provided on the load side for your outgoing wire connections.

Can the QGA32125 be used in 480V or 600V electrical systems?

No, this specific Q-frame breaker is rated for a maximum of 240V AC. For 480V or 600V I-Line applications, you must specify a different frame class, such as an H-frame or J-frame circuit breaker.

SuperClub

Join free. Get 500 SuperPoints.

Earn points on eligible purchases and redeem them at checkout.

100 SuperPoints = $1 off.

Warranties

60-Day Warranty

Your purchase includes 60 days of SuperBreakers warranty coverage.

Get a Quote

Don’t see what you’re looking for?

We source obsolete and hard-to-find parts every day.

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.

Read our full shipping policy

Same Day Shipping

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.