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Square D QDA221104 Molded Case Circuit Breaker

  • 110A
  • 2 Pole
  • I-Line
Square D QDA221104
Molded Case Circuit Breaker
Brand Square D
SKU QDA221104
Select Item Condition
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  • 110A
  • 2 Pole
  • I-Line

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Square D QDA221104 - 110A 2 Pole Molded Case Circuit Breaker

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$1,087.50 In Stock

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Description

Engineered for commercial power distribution, the Square D QDA221104 is a 2-pole, 110A molded case circuit breaker from the PowerPacT Q-Frame family. It provides reliable thermal-magnetic protection with long-time and instantaneous (LI) trip functions. This unit mounts into Square D I-Line panelboards and switchboards using a BC phase connection. It serves as a drop-in replacement for legacy Q221104 breakers. Rated 25kAIC at 240V, this HACR-rated MCCB features a visual trip indicator.

Specifications

Key specifications
Brand Square D
Series QDA
Amperage 110A
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
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, Alarm Switch, Padlock Attachment
Accessories Load Side Lugs Included
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

5 answers
What type of panelboard is the QDA221104 designed for?

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

What does the "D" in the QDA221104 part number signify?

In the Square D PowerPacT Q-Frame series, the "D" indicates the interrupting rating. This specific breaker has a D-interrupting rating of 25kA at 240VAC.

What wire sizes are accepted by the lugs on this 110A breaker?

The factory-installed lugs on the QDA221104 accept aluminum or copper wire ranging from 4 AWG to 300 kcmil.

What type of trip unit is equipped on the QDA221104?

It features a fixed thermal-magnetic trip unit with Long-Time (L) and Instantaneous (I) protection functions. Both the thermal and magnetic trip thresholds are fixed and non-adjustable.

How does this breaker connect to the panelboard bus?

The QDA221104 uses an I-Line style plug-in connection. The line side features a specialized jaw that plugs directly onto the I-Line panelboard bus, while the load side uses traditional mechanical lugs.

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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