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Square D QDL22110 Molded Case Circuit Breaker

  • 110A
  • 2 Pole
  • Unit Mount
Square D QDL22110
Molded Case Circuit Breaker
Brand Square D
SKU QDL22110
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  • 110A
  • 2 Pole
  • Unit Mount

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Square D QDL22110 - 110A 2 Pole Molded Case Circuit Breaker

Square D QDL22110 - 110A 2 Pole Molded Case Circuit Breaker

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$721.03 In Stock

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Description

Engineered for commercial use, the Square D QDL22110 is a 2-pole, 110A MCCB from the PowerPacT Q-Frame family. It provides thermal-magnetic protection with LI trip functions. This unit mount breaker features line and load lugs. It installs into Square D NQ panelboards and switchboards, serving as a replacement for legacy Q2L2110 breakers. Rated at 25kAIC at 240VAC, it ensures robust fault clearing. The unit is HACR rated and includes a push-to-trip mechanism.

Specifications

Key specifications
Brand Square D
Part Number QDL22110
Series QDL
Amperage 110A
Poles 2
Mounting Style Unit Mount
Voltage 208Y/120VAC, 240VAC
Phase 1
AIC Rating 25kA @ 208Y/120VAC, 25kA @ 240VAC
Fit and installation
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
Standards and features
Available Options 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, Reverse Feed, Mercury Free, PVC Free

Product FAQs

6 answers
What is the difference between the QDL22110 and the QGL22110 or QJL22110?

The difference is the interrupting rating. The QDL22110 is rated for 25 kA at 240V, while the QGL is rated for 65 kA, and the QJL is rated for 100 kA. All share the same physical Q-frame size and 110A rating.

What is the recommended tightening torque for the lugs on the QDL22110?

The line and load lugs should be torqued to 248 lb-in (28 N.m) for wire sizes ranging from 4 AWG to 300 kcmil aluminum or copper.

How does this unit-mount Q-frame breaker differ from an I-Line version?

This unit-mount breaker features lugs on both the line and load ends for cabled connections and is bolted directly to a backpan or enclosure. I-Line breakers are designed to plug directly into an I-Line panelboard bus.

Which standalone enclosures are compatible with the QDL22110 breaker?

This 2-pole Q-frame breaker can be installed in Square D Q2-series enclosures, such as the indoor Q22200NS or the outdoor NEMA 3R rated Q2200MRBE.

Can the QDL22110 be reverse fed?

Yes, standard PowerPacT Q-frame unit-mount thermal-magnetic breakers can be forward or reverse fed, making them suitable for use as back-fed main breakers.

Are the trip settings adjustable on the QDL22110?

No, this breaker features a fixed thermal-magnetic trip unit. The long-time thermal overload is fixed at 110A, and the instantaneous magnetic short-circuit trip is fixed at 2400A, with a magnetic hold current of 1200A.

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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