Square D QO/Homeline Service E...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$24.36
Square D QO/Homeline Service Entrance Barrier, 100-125A Convertible

Square D QO/Homeline Service Entrance Barrier, 100-125A Convertible

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Model: PKSB1LA

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

$24.36
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Square D QO/Homeline Service Entrance Barrier, 100-125A Convertible

The Square D Service Entrance Barrier is a convertible enclosure accessory engineered for use with QO and Homeline load center product lines, supporting a line rated current range of 100-100 A and 125-125 A. Designed for residential market segmentation, this barrier accessory helps maintain proper internal separation within the load center enclosure for safe, code-compliant service entrance wiring. As a Square D enclosure accessory, it is built to integrate seamlessly with compatible QO and Homeline load centers during installation or field upgrades.

Key Features

  • Range of Product: Compatible with both QO and Homeline load center series.
  • Line Rated Current: Convertible barrier supporting 100-100 A and 125-125 A rated current configurations.
  • Enclosure Accessory: Functions as a service entrance barrier within the load center enclosure assembly.
  • Residential Application: Market segmentation identifies this as a residential-grade accessory.
  • Green Premium Product: Recognized under Square D's Green Premium status for environmental reporting.
  • Country of Origin: Manufactured in the United States.
  • Packaging: Supplied 1 ea per package.

Certifications & Compliance

  • ROHS EUR Compliant
  • Reach Free of Substances of Very High Concern (SVHC) Above Threshold
  • Mercury Free
  • Toxic Heavy Metal Free
  • Pro-active China RoHS Declaration (Out of China RoHS Legal Scope)

Technical Specifications

  • Toxic Heavy Metal Free: Yes
  • Take Back: No
  • Tier: 3
  • Returnability: Yes
  • Sustainable Packaging: No
  • Mercury Free: Yes
  • Packaging Without Single Use Plastic: No
  • Reach Free Shvc: Yes
  • Tier Id: 3
  • 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
  • Without Single Use Plastic: No
  • ROHS Exemption Information: Yes
  • Persona Type Names: Contractor
  • Reach Free Of Svhc: Yes
  • H And D Domain: Safety
  • H And D Enrichment Class 4: Enclosure accessory

Typical Applications

  • Residential Service Entrance Wiring
  • QO and Homeline Load Center Installations
  • Load Center Enclosure Upgrades and Retrofits
  • New Residential Construction Electrical Panels
  • Panelboard and Enclosure Accessory Installations

Why Square D?

Square D engineers its QO and Homeline load center accessories, including this service entrance barrier, to support safe and reliable residential electrical distribution. Backed by Green Premium status, ROHS compliance, and mercury-free, toxic-heavy-metal-free construction, this accessory reflects Square D's commitment to environmentally responsible, code-compliant components for professional electrical installations.

Manufacturer Resources

Product Specs

Product Type:
Enclosure Accessory
Amperage Rating:
100-125A
Series:
QO/Homeline
Country of Origin:
United States
Standards:
ROHS Compliant
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Enclosures

Square D PKSB1LA – Frequently Asked Questions

1) What does a service entrance barrier actually do in a QO or Homeline load center?
The Square D PKSB1LA is an insulating barrier that separates the service entrance (line side) wiring from the rest of the load center interior, so the incoming untagged service conductors stay isolated inside the enclosure. It is a field-installable accessory for QO and Homeline load centers, not a part of the breaker or bus itself.
2) Will the PKSB1LA barrier work in a 125A Homeline panel, or is it only for 100A?
Both. The PKSB1LA is convertible and covers 100A and 125A line rated current configurations, so one part serves either panel rating. If your load center is above 125A, this is not the barrier for it.
3) Does this Square D barrier fit QO panels as well as Homeline?
It is listed for use with both the QO and Homeline load center product lines, within the 100A to 125A range. Square D keeps these two families separate for breakers, but this barrier accessory spans both.
4) Can I add a service entrance barrier to a panel that is already installed, or does it have to go in during new construction?
Either. Square D lists the PKSB1LA for new residential construction panels and for load center enclosure upgrades and retrofits, so it can be added to an existing QO or Homeline 100A to 125A load center in the field.
5) Is this barrier rated for commercial panelboards or just residential load centers?
Square D segments the PKSB1LA as a residential accessory, intended for QO and Homeline load centers. For commercial panelboard work you would be looking at barrier kits specific to that panelboard type, not this one.
6) What is the correct part number to order for a Square D 100A/125A service entrance barrier?
Order Square D PKSB1LA. That is the manufacturer part number for the convertible 100A to 125A service entrance barrier used in QO and Homeline load centers.
7) How many barriers come in a pack of the Square D PKSB1LA?
One each per package. If you are barriering out several panels on a multi-family or tract job, order one PKSB1LA per load center.
8) Is the Square D service entrance barrier RoHS compliant and made in the USA?
Yes on both. The PKSB1LA is RoHS compliant, mercury free and toxic heavy metal free, carries Square D Green Premium status, and is manufactured in the United States, which matters on public and institutional jobs with domestic sourcing requirements.
How fast can I get the Square D PKSB1LA 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 PKSB1LA come with a warranty?
Absolutely. The Square D PKSB1LA 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 PKSB1LA?
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 PKSB1LA 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.
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