Square D QOU Series Miniature ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$410.06
Square D QOU Series Miniature Circuit Breaker, Thermal Magnetic

Square D QOU Series Miniature Circuit Breaker, Thermal Magnetic

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Model: QOU350

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

$410.06
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Square D QOU Series Miniature Circuit Breaker, Thermal Magnetic

The Square D QOU Series Miniature Circuit Breaker is a unit mount, cable-in/cable-out thermal magnetic breaker built for OEM applications needing reliable overcurrent protection and switching on AC and DC systems. Available in one, two, or three pole configurations, the QOU Series carries a 10 kA short circuit current rating and supports 120/240 V AC, 120 V AC, and 48 V DC operation. Backed by UL Listed, CSA, and IEC certifications, it delivers dependable performance for OEM electrical distribution equipment.

Key Features

  • Pole Configuration: Available in one, two, or three pole thermal magnetic circuit breaker configurations for OEM overcurrent protection and switching.
  • Wire Range: Accepts AWG 14 through AWG 2 aluminum or copper conductors.
  • Electrical Connection: Slotted box lugs on both the line side and load side for secure cable-in/cable-out termination.
  • Short Circuit Current: 10 kA short circuit current rating for dependable interruption capacity.
  • Operational Voltage: Rated for 120/240 V AC, 120 V AC, and 48 V DC systems.
  • Circuit Breaker Application: HACR rated for heating, air conditioning, and refrigeration equipment circuits.
  • Tightening Torque: 45 lbf.in specified for AWG 14 through AWG 2 terminations.

Certifications & Compliance

  • UL Listed
  • CSA
  • IEC

Technical Specifications

  • Series: QOU
  • Warranty Period: 18 months
  • Toxic Heavy Metal Free: Yes
  • Mercury Free: Yes
  • Serviceability: No

Typical Applications

  • OEM Equipment and Panel Assemblies
  • Commercial and Industrial Electrical Distribution
  • AC and DC Overcurrent Protection Systems
  • Panelboard and Load Center Wiring
  • Renovation and New Construction Projects

Why Square D?

Square D QOU Series circuit breakers are UL Listed, CSA, and IEC certified, HACR rated, and backed by an 18-month warranty, reflecting the build quality professionals expect from OEM electrical distribution equipment. As a mercury free and toxic heavy metal free product, the QOU Series also supports responsible, code-compliant electrical installations across AC and DC overcurrent protection applications.

Manufacturer Resources

Product Specs

Series:
QOU
Product Type:
Circuit Breaker
Listing:
UL Listed
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Circuit Breakers

Square D QOU350 – Frequently Asked Questions

How fast can I get the Square D QOU350 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 QOU350 come with a warranty?
Absolutely. The Square D QOU350 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 QOU350?
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 QOU350 from ZenSupply?
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