Circuit Breaker Enclosures
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New & Recertified Circuit Breaker Enclosures — In Stock and Ready to Ship
Key Takeaways:
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Essential Electric Supply offers both new and recertified circuit breaker enclosures ready for same-day shipping.
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Enclosures are available in multiple NEMA ratings to protect against indoor, outdoor, and harsh environmental conditions.
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Inventory includes trusted brands like Siemens, Eaton, Square D, ABB, and more.
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Recertified units are tested to OEM standards and backed by a two-year warranty.
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Customers benefit from fast shipping, a 30-day return policy, and 24-hour emergency support.
Essential Electric Supply stocks new and recertified circuit breaker enclosures ready to ship the same day you order. Our products range from standard indoor units to heavy-duty enclosures rated for the harshest environments.
An enclosure is the metal case used to protect the circuit breakers from damage by shielding internal components from moisture, dust, and physical impact. Circuit breaker enclosures are specified by NEMA rating, which defines what conditions the housing is built to withstand. Common ratings include NEMA 1 (indoor, general purpose), NEMA 3R (outdoor, rain and sleet resistant), NEMA 4 (watertight, indoor/outdoor), and NEMA 4X (watertight with corrosion resistance). Typical applications include outdoor installations, industrial environments, wet or dusty locations, and any setting where the breaker is exposed to conditions beyond a controlled panel room.
Essential Electric Supply carries new and recertified circuit breaker enclosures in stock from top brands across our 60,000 product inventory.
Every order ships with:
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Same-day shipping on in-stock orders placed before 1:30 PM PST
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24-hour emergency support line for urgent needs
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Two-year warranty on all recertified units
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30-day return policy on all orders
Shop Our Enclosure Circuit Breakers
We stock new and recertified circuit breaker enclosures from the industry's most trusted names, all in one place and ready to ship to electricians and contractors:
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Brands: Siemens, Eaton, Square D, Schneider Electric, Cutler-Hammer, GE, ABB
Our inventory covers a broad range of NEMA enclosure ratings, voltage levels, and amperage configurations — whether you're sourcing for a standard indoor panel or a corrosion-resistant outdoor installation.
With same-day shipping on in-stock orders placed by 1:30 PM PST, multiple ship points across North America, and 24-hour emergency support, we're ready when the maintenance, repair, and operations can't wait.
Every recertified circuit breaker enclosure is tested to OEM specifications before it ships, backed by our two-year warranty. For urgent orders or large-volume requests, call our 24-hour support line or submit a quote request today.
Frequently Asked Questions
Do you offer same-day shipping on circuit breaker enclosures?
Yes. Orders placed by 1:30 PM PST on in-stock units ship the same day via UPS. Free UPS Ground shipping is available on orders over $250 within the continental United States, and expedited after-hours air delivery is available for time-critical situations. With multiple shipping points across North America, most customers receive their parts quickly regardless of location.
Are your recertified circuit breaker enclosures tested before shipping?
Yes. Every recertified circuit breaker enclosure is tested to OEM specifications before leaving our warehouse. Recertified units ship with our two-year warranty — the same coverage applied to new stock — and all orders are backed by our 30-day return policy.
What NEMA ratings do your enclosure circuit breakers cover?
Our inventory includes circuit breaker enclosures across common NEMA ratings: NEMA 1 (indoor, general purpose), NEMA 3R (outdoor, protected against rain and sleet), NEMA 4 (watertight for indoor and outdoor use), and NEMA 4X (watertight with added corrosion resistance). If you need help confirming the right rating for your environment, contact our team directly.
