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Square D EGB34040 3 Pole Circuit Breaker

Brand Square D
SKU EGB34040
4.9
Rated 4.9 out of 5 stars
22 Reviews
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99

Square D EGB34040 3 Pole Circuit Breaker

Brand Square D
SKU EGB34040
4.9
Rated 4.9 out of 5 stars
22 Reviews
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Earn 339 SuperPoints

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Square D EGB34040 3 Pole Circuit Breaker

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$339.99 In stock

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DescriptionSpecificationsSuperClubWarranties
Description

Square D EGB34040 3 Pole Circuit Breaker

The Square D EGB34040 is a 3 Pole thermal magnetic molded case circuit breaker with a current rating of 40 Amps and a voltage rating of 480Y/277VAC. It has an interrupting rating of 35kAIC at 480Y/277VAC. The EGB34040 has a bolt-on connection type and includes LI - long-time and instantaneous trip functions.

Specifications

Brand Square D
Series EGB
Amperage 40
Voltage 480Y/277VAC
Poles 3
Phase 3
Mounting Type Bolt-On
Approval cULus
Interrupting Rating 35kAIC at 480Y/277VAC
Frame Type EGB
Connection Type Bolt-On
Protection Thermal Magnetic
Functions LI - Long-Time and Instantaneous Trip
Terminal Connection Lugs Aluminum
Length (in) 4.05
Width (in) 2.94
Height (in) 5.66
Wire Gauge AWG 12 to AWG 2/0, Aluminum, AWG 14 to AWG 2/0, Copper
For Use With NF Panelboard
Standards HACR, HID
Temperature Rating 40 °C
Mpn EGB34040
Upc 785901311171
Gtin 785901311171

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Warranties

We’ve got you covered!

When shopping with SuperBreakers, you’ll have peace of mind knowing that every single item you purchase includes a 60 day warranty, free of charge. Why such confidence? Because only the highest quality electrical parts have a place on our shelves, and we stand by every single one we sell.

If anything goes wrong with your item that is not a result of misuse or normal wear and tear, we’ll gladly replace it at no cost to you.

Click here to read our full warranty details

Shipping

Free Shipping Policy

Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please indicate at checkout if USPS or UPS is a required shipment method. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.

Click here to read out full Shipping and Delivery policy!
Same Day Shipping

We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
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Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping

All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.

4.9
Rated 4.9 out of 5 stars
Based on 22 reviews
Total 5 star reviews: 20 Total 4 star reviews: 2 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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22 reviews
  • TI
    Tim I.
    Verified Buyer
    Reviewing
    Square D EGB34040 3 Pole Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/6/25
    Problem Solved

    The breakers showed up packaged very well and in great shape. The pricing was very competitive and solved our problem sourcing older circuit breakers.

    Was this helpful?
  • MK
    Marvin K.
    Verified Buyer
    Reviewing
    Square D EGB34045 3 Pole Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/4/25
    Square D EGB34045 3 Pole Circuit Breaker

    Breaker and service was great and always has been. Looking forward more business in the future. Thanks.

    Was this helpful?
  • K
    Keith
    Verified Buyer
    Reviewing
    Square D EGB34100 3 Pole Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    7/22/25
    5 Stars

    Wxactly as described and superfast shipping!

    Was this helpful?
  • LI
    Litz I.
    Flag of United States
    Reviewing
    Square D EGB24015 2 Pole Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    11/22/23
    Geisinger ASC Breakers

    SuperBreakers really help us get a job done on time with the over night shipping and the selection of breakers available. So thank you SuperBreakers.

    Was this helpful?
  • JV
    Julie V.
    Flag of United States
    Reviewing
    Square D EGB34020 3 Pole Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/8/23
    You guys have been great.

    You guys have been great. Seems like when I need a breaker you guys have it. So glad I found you guys. Thank you.

    Was this helpful?

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