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Square D QBM32110TN Molded Case Circuit Breaker

  • 110A
  • 3 Pole
  • Unit Mount
Square D QBM32110TN
Molded Case Circuit Breaker
Brand Square D
SKU QBM32110TN
Select Item Condition
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  • 110A
  • 3 Pole
  • Unit Mount

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Square D QBM32110TN - 110A 3 Pole Molded Case Circuit Breaker

Square D QBM32110TN - 110A 3 Pole Molded Case Circuit Breaker

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$1,153.65 In Stock

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Description

Built for demanding industrial environments, the Square D QBM32110TN is a 110A, 3-pole molded case circuit breaker. It operates on 240VAC systems and provides robust thermal-magnetic overcurrent protection. Designed for unit mounting, this breaker integrates seamlessly into NQ and NQOD panelboards, as well as switchboards. It is an exact cross-reference replacement for the discontinued Q23110 model. The breaker features a 10kAIC rating and includes Square D's Visi-Trip visual indicator.

Specifications

Key specifications
Brand Square D
Part Number QBM32110TN
Series QBM
Amperage 110A
Poles 3
Mounting Style Unit Mount
Voltage 208Y/120VAC, 240VAC
Phase 3
AIC Rating 10kA @ 208Y/120VAC, 10kA @ 240VAC
Fit and installation
Frame Type QBM
Terminal Type Stud/Tapped Pad
For Use With NQ Panelboards, NQOD Panelboards, Switchboards, 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 Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release, Padlock Attachment
Accessories Line Side Lugs Included, Terminal Nut Kit
Standards CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489
Approval CSA, IEC, NOM, UL
Temp Rating -25C to 70C
Construction Features HACR Rated, Visual Trip Indicator, Common Trip

Product FAQs

6 answers
What legacy circuit breaker does the QBM32110TN replace?

The QBM32110TN is a direct cross-reference replacement for the discontinued Square D Q23110 circuit breaker. It fits the same NQ and NQOD panelboards and switchboards.

What does the TN suffix indicate on this Q-Frame breaker?

The TN suffix specifies the terminal configuration. It means the breaker has factory-installed studs on the load side (OFF end) without nuts or washers, while the line side features standard box-type lugs.

Which panelboards accept the QBM32110TN circuit breaker?

This unit-mount PowerPacT Q-Frame breaker is designed for installation in Square D NQ and NQOD panelboards, as well as compatible switchboards and individual enclosures.

What are the wire size requirements for the line side lugs?

The standard box-type lugs on the line side of this breaker accept 4 AWG to 300 kcmil aluminum or copper conductors.

Is the QBM32110TN suitable for HVAC applications?

Yes, this breaker is HACR rated, meaning it is approved for use with heating, air conditioning, and refrigeration equipment.

Does this breaker feature a tripped status indicator?

Yes, it includes the Square D Visi-Trip visual indicator, which provides clear visual confirmation when the breaker has tripped to help speed up troubleshooting.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 2 reviews
Total 5 star reviews: 2 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Rating
Ratings
2 reviews
  • MP
    Michael P.
    Verified Buyer
    Reviewing
    Square D QBM32200TN - 200A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    4/14/26
    Owner…..Payne Electric

    Got exactly what I ordered.

  • TM
    Tony M.
    Verified Buyer
    Reviewing
    Square D QBM22200TN - 200A 2 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    12/12/25
    Square D circuit breakers

    As always, I order circuit breakers from super breakers and I receive my order the very next day. Great service, very dependable. !

    Also there prices are great .

    Tony