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 QYU110 10A 1P 277V Circuit Breaker | AmpState

Part Number QYU110
Amperes 10
Poles 1
Voltage 277
Product Type circuit-breaker
Icon
Manufacturer :Square D
Icon
Replacement available
Icon
Picture available on request
Icon
CSA / UL Approved
Regular price $334.00
Sale price $334.00 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 QYU110 10A 1P 277V Circuit Breaker | AmpState

Square D QYU110 10A 1P 277V Circuit Breaker | AmpState

Regular price $334.00
Sale price $334.00 Regular price
Unit price
Product description
Shipping

When you’re protecting distribution circuits in commercial or light industrial settings, you need a trusted, exact-fit solution. The Square D QYU110 is a 10 A, 1-pole circuit breaker engineered for 277 V systems, designed to shield panelboards, load centers, and electrical distribution networks from overloads and short circuits. Built for everyday electrical work, this breaker delivers reliable performance, straightforward replacement, and peace of mind in critical infrastructure.

Why the QYU110 stands out

  • 277V single-pole protection aligns with typical commercial distribution panels, delivering precise, site-appropriate circuit protection.
  • Direct part-number match reduces guesswork for maintenance teams and panel builders who need exact compatibility without rework.
  • Brand reliability from Square D ensures consistent trip characteristics and predictable behavior across panelboards and distribution gear.
  • Stock-ready from AmpState supports quick procurement for repairs, builds, or spare inventory—minimizing downtime and project delays.
  • Versatile usage ideal for protecting individual circuits in panelboards and load centers within commercial facilities and light industrial environments.

Key specifications at a glance

  • Manufacturer: Square D
  • Part Number: QYU110
  • Product Type: Circuit Breaker
  • Amperage: 10 A
  • Poles: 1
  • Voltage: 277V

Practical use cases

  • Replacement in established 277V panelboards where a direct QYU110 or equivalent breaker is needed, enabling a quick, plug-and-play swap.
  • Stock for maintenance teams and panel builders to ensure immediate availability during installations, repairs, or upgrades.
  • New installations requiring a 10A, 1-pole protection device within 277V distribution circuits.

How AmpState supports your purchase

  • Need help confirming compatibility? Message our team and we’ll verify fit against your panel requirements and system voltage.
  • Shipped with care from AmpState to ensure your QYU110 arrives ready for installation and tested for immediate use.

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

Matched our existing hardware and fit as expected. Clean install.

Maintenance · Retrofit work

Verified

Quick confirmation on details and a smooth ordering process.

Purchasing · Fast turnaround

Verified

Came well packed. Labeling made receiving and staging easy.

Warehouse · Receiving

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