Square D QO Circuit Breaker Ha...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$16.31
Square D QO Circuit Breaker Handle Tie Accessory

Square D QO Circuit Breaker Handle Tie Accessory

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Model: QO3HT

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

$16.31
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Square D QO Circuit Breaker Handle Tie Accessory

The Square D QO Circuit Breaker Handle Tie Accessory is engineered for use with QO and QOB one, two, and three pole thermal magnetic circuit breakers, which provide overcurrent protection and switching on ac and dc systems. These QO and QOB breakers feature an over center, trip-free toggle mechanism with quick-make, quick-break action, and this handle tie ties adjacent breaker handles together so multi-pole circuits switch simultaneously. Part of Square D's QO range of product accessories, it is backed by an 18-month warranty for dependable long-term performance in residential panelboards.

Key Features

  • Handle Tie Function: Ties together the handles of QO and QOB one, two, and three pole thermal magnetic circuit breakers for coordinated multi-pole operation.
  • Trip-Free Toggle Compatibility: Designed for breakers with an over center, trip-free toggle mechanism and quick-make, quick-break switching action.
  • AC/DC System Support: Compatible with QO and QOB breakers used for overcurrent protection and switching on both ac and dc systems.
  • QO Product Range: Manufactured within Square D's QO range of circuit breaker accessories for consistent fit and function.
  • 18-Month Warranty: Backed by Square D's 18-month warranty period for added peace of mind.
  • Toxic Heavy Metal Free & Mercury Free: Manufactured without toxic heavy metals or mercury for a safer installation profile.

Certifications & Compliance

  • RoHS Compliant (EU RoHS in scope)

Technical Specifications

  • Warranty: 18 months
  • Toxic Heavy Metal Free: Yes
  • Mercury Free: Yes
  • Returnability: Yes
  • Range Of Product: QO
  • Country of Origin: Mexico

Typical Applications

  • Residential Electrical Panelboards
  • QO and QOB Circuit Breaker Installations
  • Multi-Pole Breaker Handle Coordination
  • Panel Upgrades and Renovation Projects
  • Contractor and OEM Panelboard Assembly

Why Square D?

Square D pairs the QO Circuit Breaker Handle Tie Accessory with an 18-month warranty and RoHS-compliant, mercury-free construction, giving contractors, OEMs, and end users a reliable way to coordinate multi-pole handle switching on QO and QOB residential circuit breakers. As part of the established QO range, it's built to integrate seamlessly with existing QO and QOB panelboard installations for code-compliant, dependable performance.

Manufacturer Resources

Product Specs

Product Type:
Handle Tie
Series:
QO
Standards:
RoHS Compliant
Department:
Electrical
Product Group:
Circuit Protection
Product Subgroup:
Circuit Breakers

Square D QO3HT – Frequently Asked Questions

1) Will the Square D QO3HT handle tie work on QOB bolt-on breakers as well as plug-on QO breakers?
Yes. The QO3HT handle tie is made for QO and QOB one, two, and three pole thermal magnetic breakers, so it works on both the plug-on QO and the bolt-on QOB versions. It ties adjacent breaker handles so a multi-pole circuit switches as one.
2) Can I use a QO handle tie on Eaton or ABB breakers in a mixed panel?
No. The QO3HT is built for Square D QO and QOB breaker handles only. For an Eaton BR loadcenter you need the Eaton BR3HT handle tie, and for ABB Q-Line breakers the ABB TQ3HTK 3-pole multiwire handle tie kit. Handle ties are not interchangeable between breaker families.
3) I need two single-pole QO breakers on a multiwire branch circuit to trip together. Is a handle tie what I should order?
A handle tie gives you simultaneous handle operation, which is what a multiwire branch circuit needs for a common disconnecting means. The QO3HT ties adjacent QO or QOB handles together so they switch at the same time. Note it is a handle tie only, not an internal common trip, so the breakers still trip individually on overcurrent.
4) Will a Square D QO3HT handle tie work on Eaton BR single-pole breakers?
No. The QO3HT handle tie is built for Square D QO and QOB one, two, and three pole thermal magnetic breakers, and handle ties are keyed to the toggle geometry of their own breaker family. For Eaton BR breakers, the matching part is the Eaton BR handle tie for three single-pole circuit breakers, which is made for the BR series. Use the tie that matches the breaker brand and series sitting in the panel.
5) What is the equivalent handle tie if the panel uses ABB Q-Line breakers instead of Square D QO?
The ABB Q-Line 3-pole multiwire breaker handle tie kit is the counterpart for Q-Line breakers. The Square D QO3HT is made for the QO and QOB range, so it is not a drop-in on a Q-Line panel. Match the tie to the breaker series: QO3HT for QO/QOB, the Q-Line kit for ABB Q-Line.
6) Do the QO breakers have to be side by side in the panel to use this tie?
Yes. The tie bridges adjacent breaker handles, so the breakers must sit in neighboring spaces on the same side of the panel. If the circuits you want ganged are split across the two bus columns, move one breaker before fitting the tie.
7) What part number do I order for the Square D QO handle tie?
Order Square D QO3HT. It is the single model offered for tying QO and QOB breaker handles, so there are no finish or size options to specify.
8) I am tying three single-pole breakers together on a multiwire branch circuit - how do the Square D, Eaton, and ABB handle ties differ?
All three do the same job of tying adjacent breaker handles so the poles switch together, and each is built for its own breaker line. The Square D QO3HT covers QO and QOB one, two, and three pole thermal magnetic breakers. The Eaton version is specified for three single-pole BR breakers. The ABB version is a three-pole multiwire handle tie kit for Q-Line breakers. The deciding factor is which breakers are already installed, not the tie itself.
9) A supplier offered an ABB Q-Line handle tie kit as a substitute for the QO3HT - is that an acceptable swap on a QO loadcenter?
Not for a QO loadcenter. The ABB part is a Q-Line 3-pole multiwire handle tie kit, intended for ABB Q-Line breakers, while the QO3HT is part of Square D's QO accessory range for QO and QOB breakers with their over center trip-free toggle. Substituting across breaker families risks a tie that does not seat on the toggles, so stay with the QO3HT when the breakers are QO or QOB.
10) Is the Square D QO handle tie RoHS compliant and free of mercury for a government or healthcare spec?
It is RoHS compliant and manufactured without mercury or toxic heavy metals, which covers the usual restricted-substance language on institutional and public-sector submittals. Country of origin is Mexico.
11) Will this handle tie work on DC circuits in a panelboard?
The QO and QOB breakers it fits are rated for overcurrent protection and switching on both ac and dc systems, so the tie is usable in either application. It is a mechanical accessory, so it adds no electrical rating of its own.
How fast can I get the Square D QO3HT 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 QO3HT come with a warranty?
Absolutely. The Square D QO3HT 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 QO3HT?
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 QO3HT from ZenSupply?
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