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Square D QDA32125 Molded Case Circuit Breaker

  • 125A
  • 3 Pole
  • I-Line
Square D QDA32125
Molded Case Circuit Breaker
Brand Square D
SKU QDA32125
Select Item Condition
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  • 125A
  • 3 Pole
  • I-Line

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Square D QDA32125 3 Pole Circuit Breaker

Square D QDA32125 - 125A 3 Pole Molded Case Circuit Breaker

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$812.99 In Stock

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Description

Built for heavy-duty power distribution, the Square D QDA32125 is a 125A, 3-pole molded case circuit breaker. As part of the PowerPact Q-Frame series, it delivers dependable thermal-magnetic protection for commercial and industrial facilities. Designed for quick integration, the breaker installs into Square D I-Line panelboards and switchboards. It is also an exact drop-in substitute for discontinued Q23125 models. This 240VAC breaker offers a 25kA interrupt rating and fixed LI trip functions.

Specifications

Key specifications
Brand Square D
Part Number QDA32125
Series QDA
Amperage 125A
Poles 3
Mounting Style I-Line
Voltage 208Y/120VAC, 240VAC
Phase 3
AIC Rating 25kA @ 208Y/120VAC, 25kA @ 240VAC
Fit and installation
Frame Type QDA
Terminal Type Lugs
For Use With Square D I-Line Panelboards, Square D I-Line Switchboards
Wire Gauge 4 AWG - 300 kcmil (Al/Cu)
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
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release, Padlock Attachment, Motor Operator
Accessories ABC Phase Connection (Factory Configured)
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

Product FAQs

6 answers
What does the catalog number QDA32125 indicate?

The part number breaks down as Q for the PowerPacT Q-frame, D for a 25kA interrupting rating at 240VAC, A for the I-Line shroud connection on the ON end, 3 for three poles, 2 for a 240VAC maximum rating, and 125 for the 125A continuous current rating.

What is the required lug torque for the QDA32125?

The factory installed lugs require a tightening torque of 247.8 lbf-in (28 N-m) for the supported 4 AWG to 300 kcmil aluminum or copper wire.

What is the recommended wire stripping length for the power terminals?

The manufacturer recommends a power wire stripping length of 0.87 inches (22 mm) prior to seating your conductors in the lugs.

Which older Square D circuit breakers does this Q-frame model replace?

The Square D PowerPacT Q-frame circuit breakers serve as a direct replacement for legacy Square D Q2 series devices.

Is the QDA32125 breaker rated for HVAC equipment?

Yes, this circuit breaker is HACR rated, making it suitable for heating, air conditioning, and refrigeration applications.

What is the phase connection type for this breaker?

The QDA32125 features an ABC phase connection, allowing it to engage all three phases on standard Square D I-Line bussing.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 6 reviews
Total 5 star reviews: 6 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Rating
Ratings
6 reviews
  • CB
    Carl B.
    Verified Buyer
    Reviewing
    Square D QDA32125 - 125A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    6/11/26
    Sq. D I-line

    Price was fair for these New Breakers. More importantly, is the avaiability and not having to deal with long lead times

  • CS
    Claus S.
    Verified Buyer
    Reviewing
    Square D QDA32100 - 100A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    3/3/26
    100A 3 phase Breaker

    Priced right and shipping was really Quick. I will use them again!!

  • CG
    Chase G.
    Flag of United States
    Reviewing
    Square D QDA32150 - 150A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    3/16/22
    Always have what I need

    5 stars Super Breaker always has what I need, and at a good price.

  • CG
    Christopher G.
    Flag of United States
    Reviewing
    Square D QDA32100 - 100A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/11/21
    speedy service. great quality

    speedy service. great quality

  • RS
    Randy S.
    Flag of United States
    Reviewing
    Square D QDA32225 - 225A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/11/19
    Super

    Quick Shipping and great price