Square D QO Mercury-Free Mecha...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$30.33

Square D QO Mercury-Free Mechanical Interlock Circuit Breaker Accessory, 1-2 Pole

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Model: QO2DTI

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

$30.33
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Square D QO Mercury-Free Mechanical Interlock Circuit Breaker Accessory, 1-2 Pole

The Square D QO Mechanical Interlock is a circuit breaker accessory engineered for compatibility with QO and QOB one and two pole thermal magnetic circuit breakers. These breakers feature an over-center, trip-free toggle mechanism with quick-make, quick-break action for reliable overcurrent protection and switching on ac and dc systems. Built with mercury-free, toxic-heavy-metal-free, and halogen-free construction, this interlock secures equipment so contact points remain energy-efficient, supporting safe, code-compliant panelboard assemblies in residential installations.

Key Features

  • Compatibility: Mechanical interlock accessory compatible with 1 to 2 pole QO and QOB circuit breakers.
  • Secure Mounting: Secures equipment so that contact points are energy-efficient.
  • Engineered Quality: QO™ MCBs are engineered for quality and reliability.
  • Material Safety: Mercury free and toxic heavy metal free construction.
  • Low-Impact Materials: Halogen free product for reduced environmental impact.
  • Warranty Coverage: Backed by an 18 month manufacturer warranty.

Certifications & Compliance

  • RoHS EUR Full Compliance Status: Compliant
  • RoHS EUR In Scope
  • Mercury Free
  • Toxic Heavy Metal Free
  • Halogen Free Product
  • Prop 65 Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Technical Specifications

  • Series: QO
  • Warranty: 18 months
  • Mercury Free: Yes
  • Toxic Heavy Metal Free: Yes
  • Halogen Free: Yes

Typical Applications

  • Residential Electrical Panelboards
  • QO and QOB Load Center Circuit Breaker Installations
  • Contractor and OEM Electrical Assemblies
  • Renovation and New Construction Wiring Projects

Why Square D?

Square D QO mechanical interlock accessories are engineered for quality and reliability, helping secure equipment so contact points stay energy-efficient in residential electrical systems. With mercury free, toxic heavy metal free, and halogen free construction plus RoHS EUR compliance and an 18 month warranty, this accessory supports safe, code-compliant panelboard assemblies for contractors and electricians working with the QO and QOB breaker line.

Manufacturer Resources

Product Specs

Product Type:
Circuit Breaker Accessory
Series:
QO
Configuration:
1-2 Pole
Standards:
RoHS EUR Compliant
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Circuit Breakers

Square D QO2DTI – Frequently Asked Questions

How fast can I get the Square D QO2DTI 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 QO2DTI come with a warranty?
Absolutely. The Square D QO2DTI 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 QO2DTI?
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 QO2DTI 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.