Solid quality component. Exactly as described on the product page.
Maintenance team · Ontario
Based in Canada
•
Serving USA & Canada
Seamless online shopping experience guaranteed with easy shipping and returns policy.
Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.
| Part Number | NQOD42L400CU |
| Amperes | 400 |
| Product Type | circuit-breaker |
Couldn't load pickup availability
Seamless online shopping experience guaranteed with easy shipping and returns policy.
Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.
Square D NQOD42L400CU Circuit Breaker, 400A is a rugged protection device crafted for demanding industrial environments. Whether you’re outfitting a new installation, performing maintenance, or replacing aging hardware, this 400 A breaker delivers reliable overcurrent protection to keep critical equipment and processes running smoothly.
Why this matters in the real world: industrial facilities demand dependable protection that can handle high electrical demand and frequent service work. The NQOD42L400CU is purpose-built for service entry, maintenance windows, and replacement projects, helping safeguard panels, feeders, and downstream equipment from overcurrent events.
Ideal use scenarios
How to ensure compatibility — Verify the fit by the exact part number (NQOD42L400CU) and assess your application requirements to ensure proper protection. If you’re unsure about compatibility, we’re here to help— message us and we’ll assist with cross-checks and guidance to confirm the right fit for your system.
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.
General feedback we often hear from customers purchasing industrial electrical parts.
Solid quality component. Exactly as described on the product page.
Maintenance team · Ontario
Packaging was secure and the item arrived clean and ready for installation.
Electrical contractor · GTA
We’ve used this type on multiple jobs and it’s been reliable so far.
Panel shop · Canada/US
Fast industrial sourcing support
Email us at sales@ampstate.com for pricing, availability, alternates, and project support.
Newsletter
Blogs