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Square D QDA221502 Molded Case Circuit Breaker

  • 150A
  • 2 Pole
  • I-Line
Square D QDA221502
Molded Case Circuit Breaker
Brand Square D
SKU QDA221502
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  • 150A
  • 2 Pole
  • I-Line

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Square D QDA221502 2 Pole Circuit Breaker

Square D QDA221502 - 150A 2 Pole Molded Case Circuit Breaker

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$656.60 In Stock

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Description

Built for heavy-duty power distribution, the Square D QDA221502 is a 2-pole, 150A molded case circuit breaker belonging to the PowerPacT Q-Frame lineup. It delivers fixed thermal and magnetic (LI) trip protection to safeguard commercial circuits against overloads. Designed for Square D I-Line panelboards and switchboards, this model features an AC phase connection. It functions as an exact replacement for the discontinued Q221502 catalog number. Operating at 240VAC, it provides a 25kAIC rating.

Specifications

Key specifications
Brand Square D
Part Number QDA221502
Series QDA
Amperage 150A
Poles 2
Mounting Style I-Line
Voltage 208Y/120VAC, 240VAC
Phase 1
AIC Rating 25kA @ 208Y/120VAC, 25kA @ 240VAC
Fit and installation
Frame Type QDA
Terminal Type Lugs
For Use With Square D I-Line Panelboards, 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 Thermal, Fixed Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment
Accessories AC Phase Connection
Standards CSA C22.2 No 5, HACR, IEC 60947-2, NEMA AB 1, NOM-003-SCFI-2000, UL 489
Approval CE, CSA, IEC, NOM, UL
Temp Rating -25C to 70C
Construction Features HACR Rated, Visual Trip Indicator, Non-Interchangeable Trip

Product FAQs

8 answers
What type of panelboards will the QDA221502 fit?

This breaker is designed exclusively for Square D I-Line panelboards and switchboards. It features an I-Line style plug-in connection and cannot be used in standard load centers like QO or Homeline.

What does the final digit in the QDA221502 catalog number indicate?

The '2' at the end of the part number indicates that this 2-pole breaker is factory configured for an AC phase connection on the I-Line bus.

Is the QDA221502 a direct replacement for the legacy Q221502?

Yes, this PowerPacT Q-frame breaker is the direct, exact replacement for the discontinued Square D Q221502 circuit breaker.

What is the required tightening torque for the load lugs?

The load lugs must be torqued to 247.8 lb-in (28 N.m) when using the accepted wire range of 4 AWG to 300 kcmil aluminum or copper conductors.

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

The recommended power wire stripping length for the load lugs is 0.87 inches (22 mm).

Can this Q-frame breaker be used in 480V systems?

No, the QDA221502 has a maximum voltage rating of 240VAC. It is not suitable for 480V or 600V distribution systems.

Is the QDA221502 suitable for HVAC applications?

Yes, this circuit breaker is HACR rated, making it fully compliant for use with heating, air conditioning, and refrigeration equipment that requires this specific designation.

Are the thermal and magnetic trip settings adjustable on this model?

No, the QDA221502 features fixed thermal and fixed magnetic trip units. The long-time and instantaneous (LI) trip functions cannot be adjusted in the field.

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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