Seamless online shopping experience guaranteed with easy shipping and returns policy.

Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.

Icon
Secure transaction
Icon
FREE & fast shipping on orders over $49
Icon
CSA approved with 1 year warranty
Icon
30 day returns
circuit-breaker

Square D QOUR320 Circuit Breaker, 20A, 3-Pole, 240V

Part Number QOUR320
Series QO
Amperes 20
Poles 3
Voltage 240
Product Type circuit-breaker
Icon
Manufacturer :Square D
Icon
Replacement available
Icon
Picture available on request
Icon
CSA / UL Approved
Regular price $1,038.00
Sale price $1,038.00 Regular price
Unit price
Save

Seamless online shopping experience guaranteed with easy shipping and returns policy.

Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.

Icon
Secure transaction
Icon
FREE & fast shipping on orders over $49
Icon
CSA approved with 1 year warranty
Icon
30 day returns
Square D QOUR320 Circuit Breaker, 20A, 3-Pole, 240V

Square D QOUR320 Circuit Breaker, 20A, 3-Pole, 240V

Regular price $1,038.00
Sale price $1,038.00 Regular price
Unit price
Product description
Shipping

Meet the Square D QOUR320 Circuit Breaker — a precise, durable solution for industrial electrical service, maintenance, and replacement projects. With a 20 A rating across 3 poles and a 240 V operating range, this device protects your 3-conductor, high-demand circuits while keeping downtime to a minimum. Built to align with the trusted QO family, the QOUR320 delivers reliable protection in demanding environments where safety and continuity matter.

  • Exact compatibility — Use the part number QOUR320 to confirm fit within Square D QO panels and ensure seamless integration in your electrical system.
  • Three-pole, 240V protection — Designed to safeguard multi-conductor 240V circuits commonly found in industrial equipment and commercial machinery.
  • Replacement-ready for maintenance — A straightforward, drop-in replacement that helps you restore circuit protection quickly and minimize downtime.
  • Industrial-grade reliability — Engineered for consistent performance across installations, with robust construction suited for challenging environments.
  • Clear compatibility guidance — Always verify fit by part number and application requirements; if you’re unsure, our team can help confirm compatibility for your project.

Practical use cases include upgrading or replacing a 3-pole 240V breaker in commercial or light industrial panels, protecting motor feeds or control circuits in 240V systems, and supporting maintenance tasks where a reliable, compatible part is essential.

Why choose the QOUR320 within the Square D QO ecosystem? It’s anchored in a family known for predictable panel fit, consistent trip characteristics, and straightforward installation. By selecting the exact part number QOUR320, you reduce the risk of mismatches that can lead to improper protection or fit issues, ensuring your electrical system remains safe and compliant.

  • Manufacturer: Square D
  • Series: QO
  • Part Number: QOUR320
  • Product Type: Circuit Breaker
  • Amperage: 20 A
  • Poles: 3
  • Voltage: 240V

Need help matching a part number or confirming compatibility? Message us and we’ll help verify fit for your specific application.

Contact sales@ampstate.com

Shipping cost is based on weight. Just add products to your cart and use the Shipping Calculator to see the shipping price.

We want you to be 100% satisfied with your purchase.

What Our Customers Say

4.9 (38 reviews)

General feedback we often hear from customers purchasing industrial electrical parts.

Verified

Solid quality component. Exactly as described on the product page.

Maintenance team · Ontario

Verified

Packaging was secure and the item arrived clean and ready for installation.

Electrical contractor · GTA

Verified

We’ve used this type on multiple jobs and it’s been reliable so far.

Panel shop · Canada/US

Fast industrial sourcing support

Need help?

  • Request a quote
  • Need a BOM priced for your project
  • Not sure which part is correct
  • Need an equivalent or replacement
  • Send your part list and get a fast reply

Email us at sales@ampstate.com for pricing, availability, alternates, and project support.

Email for a quote Typical reply: same business day