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EHB34040 - 40 Amp Circuit Breaker

  • 40 Amp
  • 14k @ 480VAC; 65k @ 240VAC
  • 3 Pole
Circuit BreakersSKU: EHB34040 [NS]

Purchase Options:

EHB34040 - 40 Amp Circuit Breaker Description

EHB34040 - 40 Amp Circuit Breaker

Looking for a breaker that just does its job? The Square D EHB34040 is a 3-pole, 40-amp bolt-on breaker built to protect your circuits without fuss. It’s great for homes, offices, or light industrial spaces. Handles heavy loads and installs quickly, so you don’t have to worry about it once it’s in.

Key Features and Benefits

  • Handles High Faults: Rated for 14,000 amps at 480V and 65,000 amps at 240V.
  • Easy to Install: Bolt-on design makes it quick to fit into panels.
  • Steady Performance: Works reliably in a variety of setups.
  • Versatile: Fits residential panels, offices, and light industrial boards.

Technical Specifications

  • Poles: 3
  • Amperage: 40A
  • Interrupt Rating:
    • 14kA @ 480VAC
    • 65kA @ 240VAC
  • Frame Type: EHB-4
  • Wire Range: #12 to #2 AWG copper or aluminum
  • Temperature Rating: 75°C
  • Dimensions:
    • Width: 3.00 inches
    • Length: 3.50 inches
    • Depth: 2.63 inches
  • Weight: About 3 lbs

Material Compliance and Certifications

  • UL Listed and built from materials that meet safety and environmental standards. You can count on it day in, day out.

Where It Works Best

  • Ideal for homes, offices, or light industrial spaces where reliable circuit protection is needed. Made to fit NEHB Panelboards for a hassle-free install.

 


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:3.0
  • Height:3.5
  • Depth:2.63
  • Poles:3
  • Amperes:40
  • A.I.C. Rating & Volts:14k @ 480VAC; 65k @ 240VAC
  • Type:EHB-4
  • Approx Dimensions:3.00"W x 3.50"L x 2.63"D
  • Additional Notes:Bolt-On 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).

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