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Square D EGB14030 Miniature Circuit Breaker

  • 30A
  • 1 Pole
  • Bolt-On
Square D EGB14030
Miniature Circuit Breaker
Brand Square D
SKU EGB14030
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  • 30A
  • 1 Pole
  • Bolt-On

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EGB14030

Square D EGB14030 - 30A 1 Pole Miniature Circuit Breaker

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$104.12 In Stock

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Description

Part of the Square D E-Frame family, this 30A single-pole unit provides overcurrent protection for commercial systems. It features fixed thermal-magnetic trip elements. Installation into NF panelboards utilizes a secure bolt-on mounting style. Included lugs accept 14-6 AWG copper wire, ensuring versatile connectivity for branch circuits. Rated for 65kA interrupting capacity at 120VAC, it offers substantial fault clearance. The Visi-Trip indicator allows rapid fault identification.

Specifications

Key specifications
Brand Square D
Part Number EGB14030
Series EGB
Amperage 30A
Poles 1
Mounting Style Bolt-On
Voltage 120VAC, 240VAC, 277VAC
Phase 1
AIC Rating 65kA @ 120VAC, 35kA @ 240VAC, 35kA @ 277VAC
Fit and installation
Frame Type EGB
Terminal Type Lugs
For Use With Square D NF Panelboards
Wire Gauge 14-6 AWG (Cu), 12-6 AWG (Al)
Max Wire 6 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 Aluminum Lugs Included
Standards CSA C22.2 No. 5, NEMA AB 1, NFPA 70, UL 489
Approval CSA, cULus, HACR, HID, NOM, UL
Temp Rating -25C to 70C
Construction Features HACR Rated, HID Rated, Visual Trip Indicator

Product FAQs

6 answers
Which panelboards are compatible with the EGB14030 circuit breaker?

This E-frame breaker is designed specifically for use in Square D NF series panelboards. It is not compatible with NQ or I-Line panelboards.

Can I use the EGB14030 to replace an EDB14030?

Yes. The EGB14030 shares the same physical dimensions and bolt-on mounting as the EDB14030 but offers a higher interrupting rating (35kAIC versus 18kAIC at 277V). It is a compliant upgrade when higher fault current protection is required.

What wire sizes are accepted by the lugs on this breaker?

The factory-installed lugs accept 14 to 6 AWG copper wire or 12 to 6 AWG aluminum wire.

Is this 1-pole breaker suitable for 480V systems?

As a 1-pole breaker, it is rated for 277VAC. It is commonly used on 480Y/277V solidly grounded wye systems where the line-to-neutral voltage does not exceed 277V. It cannot be used on 480V ungrounded delta systems.

What is the difference between EGB and EJB breakers?

The difference is the interrupting rating. EGB breakers are rated at 35kAIC at 277V, while EJB breakers provide a higher rating of 65kAIC at 277V. Both share the same E-frame footprint and fit the same NF panelboards.

Does this breaker include ground fault or arc fault protection?

No. The EGB14030 is a standard thermal-magnetic breaker providing only long-time overload and instantaneous short-circuit protection. It does not feature GFCI or AFCI capabilities.

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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.