Skip to content
  • Product Image of EH24040 - 40 Amp Circuit Breaker #1
** Picture is for identification purposes only and may not represent the actual amperage of the product listed **
scroll for more

EH24040 - 40 Amp Circuit Breaker

  • 40 Amp
  • 14k @ 480VAC
  • 2 Pole
Circuit BreakersSKU: EH24040 [R]

Purchase Options: Refurbished

EH24040 - 40 Amp Circuit Breaker Description

EH24040 - 40Amp Circuit Breaker

The EH24040 40 A Circuit Breaker from Square D offers reliable, hassle-free protection for your electrical system, making it a top choice for both residential and light-commercial projects. Using trusted thermal‑magnetic technology, this breaker responds quickly to overloads and short circuits, keeping your wiring and devices safe while maintaining smooth, uninterrupted operation. Its convenient plug-on design makes installation fast and simple, and the durable construction ensures it stands up to daily use without worry.

Key Features and Benefits

  • Thermal-Magnetic Protection: Precisely reacts to overcurrent situations, preventing damage to equipment or wiring.
  • High Interrupting Capacity: Rated at 14,000 AIC at 480 VAC, it can handle significant electrical surges without issue.
  • Easy Plug-On Installation: Snap it into place—no tools or extra hardware required—saving time and effort during setup.

Technical Specifications

  • Poles: 2
  • Amperage: 40 A
  • Voltage Rating: Up to 480 VAC
  • Interrupting Rating: 14,000 AIC
  • Frame Type: EH‑4
  • Wire Capacity: #12–#2 AWG copper or aluminum wire (75 °C rating)

Material Compliance and Certifications

  • Industry Standards: Crafted with high-quality materials that meet rigorous industry standards, the EH24040 is UL‑listed, ensuring it passes extensive safety and performance tests.
  • Durability and Responsibility: Each component is built for durability and environmental responsibility, providing a reliable and long-lasting solution for your electrical needs.

Suitability

  • Designed for the NEHB Panelboard only, this breaker is perfect for new wiring projects or upgrading existing systems. Whether installed in homes, offices, or light industrial spaces, the EH24040 delivers dependable protection without any unnecessary complexity, giving you confidence that your circuits are safe and your equipment is secure.

Use of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. All trademarks and registered trademarks are the property of their respective owners.

Specifications

  • Width:2.0
  • Height:3.5
  • Depth:2.63
  • Poles:2
  • Amperes:40
  • A.I.C. Rating & Volts:14k @ 480VAC
  • Type:EH-4
  • Approx Dimensions:2.00"W x 3.50"L x 2.63"D
  • Additional Notes:Plug-On Thermal Magnetic Circuit Breaker

Returns are easy

You may return unused items within 30 days of delivery for a full refund.

FREE shipping on breaker orders over $100 and all other items with orders over $500.

CIRCUIT BREAKER SUPERSTORE® offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).

Same Day Shipping

We strive to ship out your items within one business day.

In rare circumstances, CIRCUIT BREAKER SUPERSTORE® may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.

CIRCUIT BREAKER SUPERSTORE® provides a limited 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer).

Similar Products

Why Us?

Free Shipping

Free shipping on orders over $100

100k+ Happy Customers

4.9 Google rating

Secure Shopping

Feel protected with every transaction