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Square D QDA221004 Molded Case Circuit Breaker

  • 100A
  • 2 Pole
  • I-Line
Square D QDA221004
Molded Case Circuit Breaker
Brand Square D
SKU QDA221004
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  • 100A
  • 2 Pole
  • I-Line

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Square D QDA221004 - 100A 2 Pole Molded Case Circuit Breaker

Square D QDA221004 - 100A 2 Pole Molded Case Circuit Breaker

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$852.60 In Stock

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Description

The QDA221004 is an industrial molded case circuit breaker from Square D's PowerPacT Q-Frame family. Rated for 100A at 240VAC, it provides essential long-time and instantaneous (LI) trip functions. This unit installs into Square D I-Line panelboards and switchboards. It features a plug-on I-Line mounting style with a BC phase connection and replaces the legacy Q221004. With a 25kAIC interrupt rating, this HACR-rated breaker ensures robust fault clearing.

Specifications

Key specifications
Brand Square D
Part Number QDA221004
Series QDA
Amperage 100A
Poles 2
Mounting Style I-Line
Voltage 208Y/120VAC, 240VAC
Phase 1
AIC Rating 25kA @ 208Y/120VAC, 25kA @ 240VAC
Fit and installation
Frame Type Q
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 Thermal, Fixed Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Handle Padlock Attachment
Accessories BC Phase Connection (Suffix 4)
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, 80% Rated

Product FAQs

7 answers
What type of panelboards are compatible with the QDA221004?

This breaker is designed exclusively for use in Square D I-Line panelboards and switchboards. It features an I-Line style plug-in connection on the line side.

Is the QDA221004 part of the PowerPacT series?

Yes, it is a PowerPacT Q-frame molded case circuit breaker. It also serves as a direct replacement for older Square D Q2 series breakers with the same specifications.

What does the D in the QDA221004 catalog number indicate?

In the PowerPacT Q-frame nomenclature, the D indicates an interrupting rating of 25kA at 240VAC. Other common Q-frame ratings include B (10kA), G (65kA), and J (100kA).

What does the A in the QDA prefix signify?

The A indicates the connection type. It specifies an I-Line shroud on the ON end for plug-in mounting, with mechanical lugs on the load end.

How much mounting space does this 2-pole Q-frame breaker require in an I-Line panel?

The QDA221004 requires 3 inches of mounting space, as each pole in the Q-frame series is 1.5 inches wide.

What wire sizes are accepted by the load side lugs on the QDA221004?

The mechanical lugs on this breaker accept aluminum or copper wire ranging from 4 AWG to 300 kcmil.

Are the trip settings on the QDA221004 adjustable?

No, this thermal magnetic breaker features fixed long-time and fixed instantaneous trip functions. The magnetic hold is set at 1200A and the magnetic trip is set at 2400A.

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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