Consistent quality. We’ve added similar items to our regular reorder list.
MRO · Reorder
Based in Canada
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Serving USA & Canada
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| Amperes | 40 |
| Poles | 3 |
| Product Type | Circuit Breaker |
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Seamless online shopping experience guaranteed with easy shipping and returns policy.
Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.
Meet the Square D EJB36040 40A 3-Pole Circuit Breaker — a purpose-built replacement designed for maintenance, retrofit, and replacement projects where exact compatibility matters. This unit is engineered to align with Square D specifications, delivering a reliable, drop-in option when you need to restore protective function without guessing at fit.
Why the part number matters: using the exact part number as your reference minimizes the risk of mismatches that can compromise circuit protection or extend downtime. The EJB36040 is the definitive reference for compatibility with Square D panels — always confirm fit and ratings before ordering to maintain the intended protection profile of your system.
Ideal use cases include:
Practical guidance: before purchase, cross-check your panel model and the associated compatibility requirements. While the part number EJB36040 is the most reliable reference, verifying fit and ratings ensures you maintain your electrical system’s safety and reliability without surprises.
Contact sales@ampstate.com
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General feedback we often hear from customers purchasing industrial electrical parts.
Consistent quality. We’ve added similar items to our regular reorder list.
MRO · Reorder
Support is responsive when we have questions about fit or application.
Purchasing · Quick answers
A reliable choice when we need industrial parts on short notice.
Service · Urgent replacement
Fast industrial sourcing support
Email us at sales@ampstate.com for pricing, availability, alternates, and project support.
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