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Square D QDL32100 Molded Case Circuit Breaker

  • 100A
  • 3 Pole
  • Unit Mount
Square D QDL32100
Molded Case Circuit Breaker
Brand Square D
SKU QDL32100
Select Item Condition
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  • 100A
  • 3 Pole
  • Unit Mount

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Square D QDL32100 - 100A 3 Pole Molded Case Circuit Breaker

Square D QDL32100 - 100A 3 Pole Molded Case Circuit Breaker

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$1,131.00 In Stock

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Description

Engineered for commercial power distribution, the Square D QDL32100 is a 3-pole, 100A MCCB from the PowerPacT Q-Frame family. It provides dependable long-time and instantaneous (LI) thermal-magnetic trip functions. This unit mount breaker installs into Square D NQ panelboards, switchboards, and individual enclosures. It also replaces legacy Q2L3100 breakers. Rated at 25kAIC at 240VAC, it features a push-to-trip mechanism and Visi-Trip visual indicator for quick status checks.

Specifications

Key specifications
Brand Square D
Part Number QDL32100
Series QDL
Amperage 100A
Poles 3
Mounting Style Unit Mount
Voltage 208Y/120VAC, 240VAC
Phase 3
AIC Rating 25kA @ 208Y/120VAC, 25kA @ 240VAC
Fit and installation
Frame Type QDL
Terminal Type Lugs
For Use With Square D NQ Panelboards, Square D Switchboards, Square D Individual Enclosures
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 Line and Load Lugs Included
Standards CSA C22.2 No 5, HACR, IEC 60947-2, NEMA AB 1, NOM-003-SCFI-2000, UL 489
Approval CSA, IEC, NOM, UL
Temp Rating -25C to 70C
Construction Features HACR Rated, 80% Rated, Non-Interchangeable Trip, Push-To-Trip, Quick-Make/Quick-Break, Trip-Free Mechanism, Mercury Free, PVC Free, Halogen Free, Visual Trip Indicator

Product FAQs

8 answers
What type of panelboards are compatible with the QDL32100?

This breaker is designed for use in Square D NQ panelboards, switchboards, and individual enclosures. It utilizes a unit mount, feed-thru connection rather than a plug-on or bolt-on design.

How does the QDL32100 differ from the QGL32100 and QJL32100?

The third letter in the Q-Frame catalog number indicates the interrupting rating. The QDL32100 is rated for 25kAIC at 240VAC, while the QGL32100 is rated for 65kAIC and the QJL32100 is rated for 100kAIC. All three share the same physical footprint and mounting style.

Does the QDL32100 come with lugs, and what wire sizes do they accept?

Yes, this breaker includes factory-installed lugs on both the line and load sides. They are designed to accept 4 AWG to 300 kcmil aluminum or copper conductors.

Can the QDL32100 be used as a main breaker in a QO load center?

Yes, this breaker can be field-installed as an alternate main circuit breaker in three-phase QO load centers rated between 70A and 225A.

What does the LI trip function mean on the QDL32100?

The LI designation indicates that the thermal-magnetic trip unit provides Long-Time (L) protection against overloads and Instantaneous (I) protection against short circuits. Both settings are fixed on this breaker.

Can the QDL32100 be reverse fed?

Yes, Square D PowerPacT Q-Frame circuit breakers, including the QDL32100, are suitable for both forward and reverse fed applications.

Is the QDL32100 rated for 480V or 600V systems?

No, the QDL32100 has a maximum voltage rating of 240VAC. It is not suitable for 480V or 600V applications.

Does the QDL32100 use a plug-on or bolt-on connection?

Neither. The QDL32100 is a unit-mount, feed-thru circuit breaker. It mounts directly to the panel or enclosure backpan and uses lugs for both line and load wire connections.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 3 reviews
Total 5 star reviews: 3 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Rating
Ratings
3 reviews
  • PM
    Patrick M.
    Verified Buyer
    Reviewing
    Square D QDL32150 - 150A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    7/28/26
    Replacement breaker for a main panel

    The breaker worked exactly as it was supposed to. We installed it and are having no issues with it. These guys are top notch.

  • RF
    Ron F.
    Verified Buyer
    Reviewing
    Square D QDL32175 - 175A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    4/27/26
    Enclosed Breaker

    As usual Super Breakers delivered on Price and a prompt delivery time, The right part for the right price everytime.

  • KN
    Karl N.
    Flag of United States
    Reviewing
    Square D QDL32150 - 150A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    5/17/19
    Breaker, breaker, 10four

    Helpful Rep. Goods delivered No delays Don't lose this number