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Square D EGB14050 Miniature Circuit Breaker

  • 50A
  • 1 Pole
  • Bolt-On
Square D EGB14050
Miniature Circuit Breaker
Brand Square D
SKU EGB14050
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  • 50A
  • 1 Pole
  • Bolt-On

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EGB14050

Square D EGB14050 - 50A 1 Pole Miniature Circuit Breaker

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$159.50 In Stock

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Description

Providing reliable overcurrent protection, the Square D EGB14050 is a 50-amp, single-pole miniature circuit breaker. It belongs to the E-Frame family and is built to handle commercial electrical loads with precision. The breaker bolts firmly into Square D NF panelboards, ensuring a tight, vibration-resistant connection. It comes equipped with aluminum load-side lugs. Rated to interrupt 65 kAIC at 120VAC, it offers robust defense against severe short circuits and includes a Visi-Trip indicator.

Specifications

Key specifications
Brand Square D
Part Number EGB14050
Series EGB
Amperage 50A
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 AWG-2/0 AWG (Cu), 12 AWG-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 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

7 answers
What panelboards are compatible with the Square D EGB14050?

The EGB14050 is an E-frame circuit breaker designed exclusively for bolt-on installation in Square D NF series panelboards.

What is the difference between Square D EDB, EGB, and EJB circuit breakers?

These are all E-frame breakers designed for NF panelboards, but they feature different interrupting ratings. At 277V, the EDB is rated for 18kAIC, the EGB is rated for 35kAIC, and the EJB is rated for 65kAIC.

Can the EGB14050 be reverse fed?

Yes, Square D E-frame breakers like the EGB14050 do not have line and load restrictions and are suitable for reverse-feed applications.

What is the maximum amperage available for 1-pole EGB breakers?

The maximum current rating for 1-pole EDB, EGB, and EJB circuit breakers is 70 amps. For 2-pole and 3-pole configurations, the maximum is 125 amps.

Is the EGB14050 HACR rated?

Yes, all Square D EGB circuit breakers are UL Listed as HACR type, making them suitable for use with heating, air conditioning, and refrigeration equipment.

Does the EGB14050 include equipment ground fault protection?

No. Standard EGB breakers provide thermal-magnetic overload and short-circuit protection. For 30mA equipment ground fault protection, an EGB-EPD variant is required.

Does the EGB14050 feature a trip indicator?

Yes, Square D E-frame breakers include the Visi-Trip indicator, which provides a clear visual confirmation when the breaker has tripped.

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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.