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Square D QBL22150 Molded Case Circuit Breaker

  • 150A
  • 2 Pole
  • Unit Mount
Square D QBL22150
Molded Case Circuit Breaker
Brand Square D
SKU QBL22150
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  • 150A
  • 2 Pole
  • Unit Mount

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Square D QBL22150 - 150A 2 Pole Molded Case Circuit Breaker

Square D QBL22150 - 150A 2 Pole Molded Case Circuit Breaker

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$275.80 In Stock

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Description

A reliable solution for commercial power distribution, the Square D QBL22150 operates as a 150-amp, 2-pole molded case circuit breaker. Belonging to the PowerPacT Q-Frame series, it utilizes fixed thermal and magnetic (LI) trip technology to defend against electrical faults. This unit mount MCCB is engineered for compatibility with Square D Q2 enclosures, meter mains, and control panels. With a 10 kAIC rating at 240VAC, it also functions as an exact replacement for legacy Q22150 breakers.

Specifications

Key specifications
Brand Square D
Part Number QBL22150
Series QBL
Amperage 150A
Poles 2
Mounting Style Unit Mount
Voltage 208Y/120VAC, 240VAC
Phase 1
AIC Rating 10kA @ 208Y/120VAC, 10kA @ 240VAC
Fit and installation
Frame Type QBL
Terminal Type Lugs
For Use With Square D Q2 Enclosures, Switchboards, Control Panels, Meter Mains
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 Lugs
Standards CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, UL 489
Approval CSA, IEC, NOM, UL
Temp Rating -25C to 70C
Construction Features HACR Rated

Product FAQs

7 answers
What older Square D circuit breaker does the QBL22150 replace?

The PowerPacT QBL22150 is a direct replacement for legacy Square D Q2 Series circuit breakers, specifically the Q22150. It fits the same mounting holes, door trim, and handle accessories.

Which enclosures are compatible with the QBL22150 circuit breaker?

This unit-mount Q-frame breaker is designed for use in Square D Q2 enclosures, as well as compatible switchboards, control panels, and meter mains.

What wire sizes are accepted by the lugs on the QBL22150?

The factory-installed line and load lugs accept copper or aluminum conductors ranging from 4 AWG to 300 kcmil.

What type of trip unit does the QBL22150 feature?

It features a fixed thermal-magnetic trip unit with long-time and instantaneous (LI) trip functions. The magnetic hold current is 1200A and the magnetic tripping current is 2400A.

Is the QBL22150 rated for 100% continuous current?

No, this circuit breaker has a standard 80% continuous current rating.

What is the difference between the QBL22150, QDL22150, and QGL22150?

These breakers share the same physical Q-frame size and 150A rating but have different interrupting capacities. The QBL22150 is rated at 10 kAIC, the QDL22150 at 25 kAIC, and the QGL22150 at 65 kAIC at 240VAC.

Can I install the QBL22150 in an I-Line panelboard?

No, the QBL22150 is a unit-mount (feed-thru) circuit breaker designed for cabled applications. For I-Line panelboards, you need an I-Line group-mounted breaker, such as the QBA22150.

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Reviews

4.9
Rated 4.9 out of 5 stars
Based on 14 reviews
Total 5 star reviews: 13 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Rating
Ratings
14 reviews
  • TB
    Timothy B.
    Verified Buyer
    Reviewing
    Square D QBL32150 - 150A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    3/18/26
    square d main breaker

    shipped quickly, and was priced very well

  • JV
    Juan V.
    Flag of United States
    Reviewing
    Square D QBL32225 - 225A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/31/22
    excellent service

    excellent service

  • JM
    J. M.
    Flag of United States
    Reviewing
    Square D QBL22150 - 150A 2 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    3/9/22
    RELIABLE VENDOR

    Superbreakers had stock on hand at 20% less than my regular vender. i got them two days before expected..I am very pleased.

  • HJ
    Howard J.
    Flag of United States
    Reviewing
    Square D QBL22200 - 200A 2 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    10/30/20
    Squad D breaker

    Breaker fit perfectly and well explained

  • LG
    Legrand G.
    Flag of United States
    Reviewing
    Square D QBL22200 - 200A 2 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/30/20
    Great

    Best deal out there! Even better than eBay or Amazon. Thanks