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Square D EGB34070 Molded Case Circuit Breaker

  • 70A
  • 3 Pole
  • Bolt-On
Square D EGB34070
Molded Case Circuit Breaker
Brand Square D
SKU EGB34070
Select Item Condition
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  • 70A
  • 3 Pole
  • Bolt-On

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Square D EGB34070 - 70A 3 Pole Molded Case Circuit Breaker

Square D EGB34070 - 70A 3 Pole Molded Case Circuit Breaker

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$638.00 In Stock

Quantity

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Description

Engineered for commercial and industrial power distribution, the Square D EGB34070 is a 3-pole, 70A molded case circuit breaker from the E-Frame family. It provides reliable thermal-magnetic protection for branch and feeder circuits. This bolt-on breaker installs into Square D NF panelboards. It features box-type aluminum lugs that accept 14-2/0 AWG copper or 12-2/0 AWG aluminum wire for flexible integration. Rated for 35kAIC at 480Y/277V and 65kAIC at 240V, it includes a Visi-Trip indicator.

Specifications

Key specifications
Brand Square D
Part Number EGB34070
Series EGB
Amperage 70A
Poles 3
Mounting Style Bolt-On
Voltage 120VAC, 240VAC, 480Y/277VAC
Phase 3
AIC Rating 65kA @ 120VAC, 65kA @ 240VAC, 35kA @ 480Y/277VAC
Fit and installation
Frame Type EGB
Terminal Type Lugs
For Use With Square D NF Panelboards
Wire Gauge 14-2/0 AWG (Cu), 12-2/0 AWG (Al)
Max Wire 2/0 AWG
Min Wire 14 AWG (Cu), 12 AWG (Al)
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Fixed Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment
Accessories Load Side Lugs Included
Standards CSA C22.2 No. 5, HACR Rated, NEMA AB 1, NOM 117, RoHS, UL 489
Approval CSA, cULus, HACR, NOM, RoHS, UL
Temp Rating -25C to 70C
Construction Features HACR Rated, Visual Trip Indicator

Product FAQs

6 answers
Can I install the EGB34070 in a Square D NQ or I-Line panelboard?

No, the EGB34070 is a bolt-on E-frame breaker engineered specifically for Square D NF series panelboards. It will not fit in NQ or I-Line panelboards, which require entirely different breaker frame types.

Is the EGB34070 a direct replacement for the legacy EHB34070?

The older EHB34070 was built exclusively for legacy NEHB panelboards. The modern EGB34070 is designed for NF panelboards, meaning they are not physically interchangeable unless the panelboard infrastructure itself is also being upgraded.

How does the EGB34070 differ from the EDB34070 and EJB34070 circuit breakers?

All three are E-frame breakers for NF panelboards with identical physical dimensions. The primary difference is their maximum interrupting capacity at 480Y/277VAC: the EDB34070 is rated for 18kAIC, the EGB34070 provides 35kAIC, and the EJB34070 delivers 65kAIC.

Is the EGB34070 circuit breaker approved for DC voltage applications?

No. Square D E-frame breakers, including the EGB series, do not carry a DC voltage rating. They are strictly intended and approved for AC power distribution.

Can I use the EGB34070 for heating, air conditioning, or high-intensity lighting loads?

Yes, this circuit breaker is HACR rated for use with heating, air conditioning, and refrigeration equipment. It is also HID rated for switching high-intensity discharge lighting circuits.

How does the Visi-Trip indicator simplify troubleshooting?

When a fault or overload causes the breaker to trip, the handle snaps to a midpoint position and reveals a bright red Visi-Trip indicator. This allows electricians to quickly visually identify a tripped breaker inside a crowded NF panelboard without needing to test each circuit.

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Reviews

4.9
Rated 4.9 out of 5 stars
Based on 25 reviews
Total 5 star reviews: 23 Total 4 star reviews: 2 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Rating
Ratings
25 reviews
  • RS
    Robert S.
    Verified Buyer
    Reviewing
    Square D EGB34015 - 15A 3 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    4/21/26
    New breaker

    Great product, exactly what I needed and shipped in a timely manner!

  • EB
    Ed B.
    Verified Buyer
    Reviewing
    Square D EGB34100 - 100A 3 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    11/5/25
    100 amp breaker

    Prompt ordering and shipping at a fair price. Thanks

  • EB
    Ed B.
    Verified Buyer
    Reviewing
    Square D EGB34015 - 15A 3 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    10/11/25
    Breaker purchase

    quick response and shipping

  • TI
    Tim I.
    Verified Buyer
    Reviewing
    Square D EGB34040 - 40A 3 Pole Miniature 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.

  • MK
    Marvin K.
    Verified Buyer
    Reviewing
    Square D EGB34045 - 45A 3 Pole Miniature 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.