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Square D EGB16030 Miniature Circuit Breaker

  • 30A
  • 1 Pole
  • Bolt-On
Square D EGB16030
Miniature Circuit Breaker
Brand Square D
SKU EGB16030
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  • 30A
  • 1 Pole
  • Bolt-On

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Square D EGB16030 - 30A 1 Pole Miniature Circuit Breaker

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$166.75 In Stock

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Description

Part of the E-Frame family, this 30A single-pole breaker provides essential overcurrent protection for commercial facilities. It is rated for 277V and 600Y/347V distribution systems. The bolt-on design ensures a secure connection within Square D NF panelboards. It accepts 14-6 AWG copper wiring via included lugs. With a 65kA interrupting capacity at 120V, it handles substantial fault currents. The Visi-Trip indicator helps personnel quickly spot tripped circuits.

Specifications

Key specifications
Brand Square D
Series EGB
Amperage 30A
Poles 1
Mounting Style Bolt-On
Voltage 120VAC, 240VAC, 277VAC, 600Y/347VAC
Phase 1
AIC Rating 65kA @ 120VAC, 35kA @ 240VAC, 35kA @ 277VAC, 18kA @ 600Y/347VAC
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 40C
Construction Features HACR Rated, HID Rated, Visual Trip Indicator

Product FAQs

6 answers
What panelboards accept the EGB16030 circuit breaker?

The EGB16030 is designed specifically for Square D NF series panelboards. It uses a bolt-on connection to secure directly to the panel bus.

What is the difference between the EDB16030, EGB16030, and EJB16030?

These are all 1-pole, 30A E-frame breakers for NF panelboards, but they feature different interrupting ratings. The EDB16030 is rated at 18 kAIC at 277VAC, the EGB16030 at 35 kAIC, and the EJB16030 at 65 kAIC. The EGB16030 can directly replace an EDB16030 when a higher interrupting capacity is required.

Is the EGB16030 rated for HID lighting and HVAC equipment?

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

What are the wire size and torque specifications for the EGB16030?

The standard lugs accept 14-6 AWG copper or 12-6 AWG aluminum conductors. The required tightening torque for the terminal lugs is 3.4 N.m (approximately 30 lb-in).

Can the EGB16030 be backfed in solar installations?

Yes, Square D E-frame breakers like the EGB16030 can be backfed for solar applications. Note that they are rated for AC voltage only and are not suitable for DC applications.

Does the EGB16030 provide ground fault protection?

No, the standard EGB16030 provides thermal-magnetic overload and short-circuit protection only. Square D E-frame breakers that include equipment ground fault protection will feature an -EPD suffix in their catalog number.

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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.