Square D QOB-DF QO Series Dual...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$491.07
Square D QOB-DF QO Series Dual Function Miniature Circuit Breaker, 1-Pole, Bolt-On

Square D QOB-DF QO Series Dual Function Miniature Circuit Breaker, 1-Pole, Bolt-On

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Model: QOB120DF

In Stock (leaves warehouse same day if ordered before 3pm ET)

$491.07
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Square D QOB-DF QO Series Dual Function Miniature Circuit Breaker, 1-Pole, Bolt-On

The Square D QOB-DF QO Series Dual Function Miniature Circuit Breaker delivers overcurrent protection and switching for AC and DC systems in a 1-pole, 120VAC configuration with a 10kA interrupt rating. This bolt-on breaker is available across a range of amperage ratings from 15A to 20A, letting installers match branch-circuit protection to the load while retaining the same dual-function (DF) design in every option. Built with an over-center, trip-free toggle mechanism for quick-make, quick-break action, it combines Combination Arc-Fault (CAFI) and Ground-Fault (GFCI) protection in a single device. It is UL Listed and CSA certified, HACR rated, and finished with a pigtail neutral connection for straightforward installation in QO series load centers and panelboards.

Key Features

  • Dual Function Protection: Combines Combination Arc-Fault (CAFI) and Ground-Fault (GFCI) circuit protection in one device for enhanced branch-circuit safety.
  • 1-Pole, 120VAC Rating: Rated operational voltage (Ue) of 120 V AC for single-pole residential and commercial branch circuits.
  • Amperage Range: Available in amperage ratings from 15A to 20A to suit a variety of branch-circuit loads.
  • 10kA Interrupt Rating: Provides reliable fault-current interruption for QO series panelboard applications.
  • Bolt-On Mounting: Bolt-on style construction for secure, vibration-resistant installation in compatible QO load centers.
  • Trip-Free Toggle Mechanism: Over-center, quick-make, quick-break toggle action with positive trip-free operation on both AC and DC systems.
  • Pigtail Neutral Connection: Pressure-plate electrical connection with pigtail neutral terminal for wire ranges of AWG 14...AWG 8 copper or aluminum, or AWG 14...AWG 10 copper.
  • HACR Rated: Suitable for heating, air conditioning, and refrigeration equipment circuits.
  • Installation Specs: Tightening torque of 4-4 N.m, rated for 40 °C ambient air temperature, and requires 1 panel space.

Certifications & Compliance

  • UL Listed
  • CSA Certified
  • TAA Compliant

Technical Specifications

  • Product Or Component Type: miniature circuit-breaker
  • Poles Description: 1P
  • Range Of Product: QO
  • H And D Enrichment Function: DF
  • Ambient Air Temperature For Operation: 40 °C
  • Number Of Spaces Required: 1
  • Compliance: TAA
  • Mercury Free: Yes

Typical Applications

  • Residential and Commercial Load Centers
  • QO Series Panelboards
  • Branch-Circuit Arc-Fault and Ground-Fault Protection
  • HACR Equipment Circuits
  • New Construction and Panel Retrofits

Why Square D?

Square D engineers the QO Series with a trip-free, quick-make quick-break toggle mechanism and dual-function CAFI plus GFCI protection to deliver dependable, code-compliant circuit protection across its full amperage lineup. Backed by UL Listed and CSA certification and built for compatibility with QO load centers, this breaker is designed for reliable performance in professional electrical installations.

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Manufacturer Resources

Product Specs

Product Type:
Circuit Breaker
Series:
QO
Voltage Rating:
120VAC
Configuration:
1-Pole
Connection Type:
Bolt-On
Listing:
UL Listed
Standards:
CSA
Department:
Electrical
Product Group:
Circuit Protection
Product Subgroup:
Circuit Breakers
Product Height:
4.76 in
Product Depth:
2.91 in
Country of Origin:
Mexico
Product Width:
0.75 in

Square D QOB120DF – Frequently Asked Questions

How fast can I get the Square D QOB120DF delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Square D QOB120DF come with a warranty?
Absolutely. The Square D QOB120DF is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Square D QOB120DF?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Square D QOB120DF from ZenSupply?
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