Square D QO Main Breaker Back-...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$18.27

Square D QO Main Breaker Back-Fed Load Center Accessory

(No reviews yet) Write a Review

Model: PKSB1QOBF

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

$18.27
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks

Square D QO Main Breaker Back-Fed Load Center Accessory

The Square D QO Main Breaker Back-Fed Load Center Accessory is engineered for use with the QO family of load centers, enabling a main breaker to be installed in a back-fed configuration within compatible QO enclosures. Finished in the recognizable Square D yellow, this accessory supports residential-grade electrical distribution systems where QO breakers, ground fault interrupters, and surge protection devices are used to protect equipment and occupants. As part of the QO range, it is built to help contractors and OEMs complete panel configurations that meet code-driven installation requirements.

Key Features

  • QO Series Compatibility: Designed for use with the QO range of load centers for a consistent, engineered fit.
  • Main Breaker Back-Fed Application: Supports back-fed main breaker mounting configurations within compatible QO load center enclosures.
  • Finish: Yellow color for easy identification within the panel assembly.
  • Residential Market Segment: Designed for residential electrical distribution and load center applications.
  • Country of Origin: Manufactured in the United States.
  • Packaging: Supplied 1 each per package for straightforward job-site handling.

Certifications & Compliance

  • ROHS EUR Compliant
  • Mercury Free and Toxic Heavy Metal Free construction
  • Prop 65 Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Technical Specifications

  • Toxic Heavy Metal Free: Yes
  • Take Back: No
  • Tier: 2
  • Returnability: Yes
  • Sustainable Packaging: No
  • Mercury Free: Yes
  • Packaging Without Single Use Plastic: No
  • Reach Free Shvc: Yes
  • ROHS Eur In Scope: Yes
  • Recycled Metal Content At Cr Level: 0 %
  • Legacy WEEE Scope: In
  • Packaging Made With Recycled Cardboard: No
  • China ROHS Label: 1
  • With Recycled Cardboard: No
  • WEEE Product Category: 5
  • Range Of Product: QO
  • Without Single Use Plastic: No
  • Product Availability: Stock - Normally stocked in distribution facility
  • ROHS Exemption Information: Yes
  • Reach Free Of Svhc: Yes
  • H And D Domain: Safety
  • H And D Enrichment Class 4: Enclosure accessory

Typical Applications

  • Residential Load Center Panel Configurations
  • QO Load Center Main Breaker Installations
  • Contractor and OEM Panel Assembly
  • Residential Electrical System Protection
  • New Construction and Panel Retrofits

Why Square D?

Square D backs its QO load center accessories with Mercury Free, Toxic Heavy Metal Free, and ROHS EUR compliant construction, reflecting a commitment to safe, code-compliant electrical products. Manufactured in the United States and built to integrate with the trusted QO load center platform, this accessory helps contractors and OEMs deliver reliable, professional-grade residential panel installations.

Manufacturer Resources

Product Specs

Product Type:
Load Center Accessory
Series:
QO
Country of Origin:
United States
Configuration:
Main Breaker Back-Fed
Product Color:
Yellow
Department:
Electrical
Product Group:
Power Distribution
Product Subgroup:
Panelboards & Load Centers

Square D PKSB1QOBF – Frequently Asked Questions

How fast can I get the Square D PKSB1QOBF 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 PKSB1QOBF come with a warranty?
Absolutely. The Square D PKSB1QOBF 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 PKSB1QOBF?
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 PKSB1QOBF from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.