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Internet #100075398

Model #QO240CP

Store SKU #577030

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QO 40 Amp 2-Pole Circuit Breaker(QO240CP)

$3041
  • Designed to protect against overloads and short-circuits
  • Quickly identify tripped breakers with our Visi-Trip indicator
  • Compatible with Square D QO electrical panels, CSED with 2 spaces
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Product Overview

Square D QO series logo



Compatible with Square D QO Products

QO is the "World's Finest" industry leading offer since 1955, with features engineered for faster installation, reliability and quality.

Square D QO standard breakers use thermal-magnetic breaker technology


Overall Electrical System Protection

Thermal-Magnetic circuit breakers provide overload and short-circuit protection for the entire circuit, including the home run.

Red Visi-Trip indicator light can be found on the front of all Square D QO breakers


Visi-Trip Indicator

Eliminates guesswork and provides faster, easier troubleshooting by indicating which circuit breaker in an electrical panel has tripped.

Find your amperage: QO standard breakers range from 15 to 125 amps


Amperage Range from
15-125 Amps

QO standard circuit breakers are available from
15-125 Amps to fit your electrical needs.

Choose between single-pole, 2-pole and 3-pole QO standard breakers


Single-Pole, 2-Pole, or
3-Pole, 3/4 in. Breakers Available

Designed to save space, taking 3/4 in. per pole space. Use one load center space with single-pole breakers, two spaces with 2-pole breakers, and 3 spaces with
3-pole breakers.

Complete the project: use with Square D circuit breaker accessories


Use with QO Circuit
Breaker Accessories

Handle clamps, ties and padlock attachments are available for use with QO breakers.

The Square D QO 40 Amp 1-1/2 in. Double-Pole Circuit Breaker is compatible with QO load centers, QO enclosures and NQOD panel boards. The breaker features a Visi-Trip indicator to easily identify a tripped circuit in the load center. This circuit breaker has a maximum load of 240-Volt with a 10,000 AIR and uses a thermal-magnetic tripping mechanism.
  • Learn about general NEC 2020 updates. Contact your local building inspector for code adoptions and details.
  • Square D QO 40 Amp two-pole circuit breaker
  • QO 40 Amp two-pole circuit breaker contains a thermal-magnetic tripping mechanism and has a two-pole common trip and the breaker features a visi-trip indicator to easily identify the tripped circuit in the load center
  • Breaker features a visi-trip indicator to easily identify a tripped circuit in the load center this circuit breaker has a maximum load of 240-Volt with a 10,000 AIR and uses a thermal-magnetic tripping mechanism
  • Use for overload and short-circuit protection of your electrical system
  • 2-pole with a common trip
  • Compatible with Square D QO load centers and CSED devices with 2 spaces
  • 10,000 AIR
  • 120/240 VAC
  • ANSI certified and UL Listed
  • Limited lifetime warranty
  • Learn More About Circuit Breakers Here in our Buying Guide.
  • Click here for more information on Electronic Recycling Programs

Additional Resources

From the Manufacturer

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.

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QO 40 Amp 2-Pole Circuit Breaker(QO240CP)
QO 60 Amp 2-Pole Circuit Breaker(QO260CP)QO 40 Amp 2-Pole Circuit Breaker (3-Pack)
BrandSquare DSquare DSquare DSquare D
NameHomeline 40 Amp 2-Pole Circuit Breaker (3-Pack)QO 40 Amp 2-Pole Circuit Breaker(QO240CP)QO 60 Amp 2-Pole Circuit Breaker(QO260CP)QO 40 Amp 2-Pole Circuit Breaker (3-Pack)
Price
$2814
/package
$3098
$3098
$6432
/package
Ratings
(1544)
(1020)
(1019)
(1019)
Interruption TypeStandard TripStandard TripStandard TripStandard Trip
Maximum Amperage (amps)40406040
Breaker TypeDouble PoleDouble PoleDouble PoleDouble Pole
Pack Size3113
Power Distribution FeaturesNo Additional FeaturesTrip IndicatorTrip IndicatorTrip Indicator
Voltage (volts)120/240120/240120/240120/240
Mounting TypePlug-OnPlug-OnPlug-OnPlug-On
Electrical Product TypeBreakerBreakerBreakerBreaker
View ProductView ProductView ProductView Product

Specifications

Dimensions

Product Depth (in.)
2.9 in
Product Height (in.)
3.1 in
Product Width (in.)
1.5 in

Details

Breaker Type
Double Pole
Electrical Product Type
Breaker
Interruption Type
Standard Trip
Maximum Amperage (amps)
40
Mounting Type
Plug-On
Number of Poles
2
Pack Size
1
Power Distribution Features
Trip Indicator
Product Weight (lb.)
0.56
Returnable
90-Day
Voltage (volts)
120/240

Warranty / Certifications

Certifications and Listings
UL Listed
Manufacturer Warranty
Square D warrants its branch circuit breakers to be free from defects in material and workmanship under normal care and proper usage in a residential installation, for the lifetime of the QO load center in which it is installed.

Questions & Answers

Typical questions asked about products:

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Customer Reviews

  • 4.7
    out of 1,020 reviews
  • 97%recommend this product
Filter by:
Showing 1-10 of 1,020 reviews
The city electrical inspector was surprised and impressed I had gotten a GFCI breaker for the sto...
The city electrical inspector was surprised and impressed I had gotten a GFCI breaker for the stove outlet. It made him really happy. It was worth the $129.00 to see how impressed he was which made me happy and I believe helped me to pass the inspection for the new 200 amp service panel from the 100 amp I am currently on.
by
  • Verified Purchase
  • Recommended
1 found this review helpful
THIS BREAKER DOES PROVIDE A LOAD NEUTRAL CONNECTION POINT
SQUARE “D” TYPE QO GFCI CIRCUIT BREAKERS UP TO 50 AMPS DO HAVE A LOAD NEUTRAL CONNECTION POINT ON THE BREAKER. THE 60 AMP VERSION IS AVAILABLE WITH OR WITHOUT A LOAD NEUTRAL CONNECTION POINT. SO IF YOUR HOT TUB REQUIRES A NEUTRAL, THIS IS THE BREAKER FOR YOU. IF YOUR TUB HAPPENS TO REQUIRE 60 AMPS, MAKE SURE YOU ORDER THE ONE WITH THE NEUTRAL CONNECTION POINT.
by
    • Recommended
    4 found this review helpful
    I put this breaker in along with a generator interlock kit. It works great, I can run the househ...
    I put this breaker in along with a generator interlock kit. It works great, I can run the household necessities on a generator during power outages.
    by
    • Verified Purchase
    • Recommended
    As described
    As described
    by
    • Verified Purchase
    • Recommended
    Great price, works well.
    Great price, works well.
    by
    • Verified Purchase
    • Recommended
    1 found this review helpful
    We used it to connect a customer's solar system to the grid
    We used it to connect a customer's solar system to the grid
    by
    • Verified Purchase
    • Recommended
    Quality breaker
    Chose to go with QO series breakers. The 20A, 2-pole is no exception to the QO series of high quality, positive locking breakers. Secure wire fastening makes for easy installation and replacement. The trip window on the front of the breaker eliminates the need of testers to fins out which breaker is in fault mode.
    by
    • DIY
    • Recommended
    6 found this review helpful
    Professional Quality 30A Breaker
    Made the decision to use only Square D QO Series circuit breakers. Professional Quality! Robust design you can feel from the moment you pick one up. Firm "snap-in" style to the panel load bar. Large variety of amperage/voltage to fit all my needs. Securely holds the wire and allows for easy replacement with minimal effort. The trip window on the front of the breaker allows me to quickly identify a tripped breaker without need for test equipment.
    by
    • DIY
    8 found this review helpful
    I like Home Depot Salesmen, they are very friendly, they will...
    I like Home Depot Salesmen, they are very friendly, they will give you advice, and if they do not know what you need to know, they always call one of their experts to help you. Thank you very much.
    by
    • Verified Purchase
    by
    • Verified Purchase
    Showing 1-10 of 1,020 reviews