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Eaton / Cutler-Hammer EGB3125FFG - 125A 3 Pole Molded Case Circuit Breaker
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Eaton / Cutler-Hammer EGB3125FFG - 125A 3 Pole Molded Case Circuit Breaker
Eaton / Cutler-Hammer EGB3125FFG - 125A 3 Pole Molded Case Circuit Breaker - view 2
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Eaton / Cutler-Hammer EGB3125FFG - 125A 3 Pole Molded Case Circuit Breaker - view 4

Eaton / Cutler-Hammer EGB3125FFG Molded Case Circuit Breaker

  • 125A
  • 3 Pole
  • Unit Mount
Eaton / Cutler-Hammer EGB3125FFG
Molded Case Circuit Breaker
Brand Eaton / Cutler-Hammer
SKU EGB3125FFG
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  • 125A
  • 3 Pole
  • Unit Mount

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Eaton / Cutler-Hammer EGB3125FFG - 125A 3 Pole Molded Case Circuit Breaker

Eaton / Cutler-Hammer EGB3125FFG - 125A 3 Pole Molded Case Circuit Breaker

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$1,915.09 In Stock

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Description SpecificationsProduct FAQs SuperClub Warranties Shipping Reviews 4.9 (25)

Description

Belonging to the Series G family, the Eaton EGB3125FFG is a 3-pole, 125A MCCB for industrial use. It utilizes fixed thermal-magnetic trip units for reliable LI protection. This EG-frame unit mounts into Eaton Series G enclosures, switchboards, and Pow-R-Line panelboards. It is officially replaced by the Power Defense PDG13C0125TFFJ. Rated 18 kAIC at 480VAC, it includes line and load lugs. The breaker features high-speed blow-open action to minimize let-through current during faults.

Specifications

Key specifications
Brand Eaton / Cutler-Hammer
Part Number EGB3125FFG
Series EGB
Amperage 125A
Poles 3
Mounting Style Unit Mount
Voltage 240VAC, 480VAC, 250VDC
Phase 3
AIC Rating 25kA @ 240VAC, 18kA @ 480VAC, 10kA @ 250VDC
Fit and installation
Terminal Type Lugs
For Use With Eaton Series G Enclosures, Switchboards, MCCs, Pow-R-Line Panelboards
Wire Gauge 14-1/0 AWG
Max Wire 1/0 AWG
Min Wire 14 AWG
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, Undervoltage Release, Alarm Switch, Padlock Attachment, Handle Lock, Multi-Wire Lugs
Accessories Line and Load Lugs Included
Standards CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489
Approval CE, CSA, IEC, KEMA, UL
Temp Rating 40C
Construction Features HACR Rated, Current Limiting, Reverse Feed

Product FAQs

7 answers
What is the direct replacement for the EGB3125FFG?

The EGB3125FFG is officially replaced by the Eaton Power Defense PDG13C0125TFFJ. The Power Defense series serves as the direct upgrade for legacy Series G EG-frame breakers.

Which panels and enclosures are compatible with the EGB3125FFG?

This EG-frame breaker is designed for installation in Eaton Series G enclosures, switchboards, motor control centers (MCCs), and Pow-R-Line panelboards.

Can I install field-fittable internal accessories in this EG-frame breaker?

Yes, the EGB3125FFG accepts common field-fit internal accessories, including shunt trips, auxiliary switches, undervoltage releases, and alarm switches.

Are line and load lugs included with this breaker?

Yes, the EGB3125FFG includes line and load side lug terminals that accept 14 to 1/0 AWG wire, eliminating the need to order separate terminal kits for standard connections.

Is the EGB3125FFG suitable for DC voltage applications?

Yes, in addition to its standard AC ratings, this breaker is rated for 250VDC applications with an interrupting capacity of 10kA.

How does the contact design improve fault protection?

The EGB3125FFG utilizes a patented contact design with high-speed blow-open action. This minimizes let-through current and limits potential damage to downstream equipment during short-circuit faults.

What type of trip protection does this breaker provide?

It features a non-interchangeable thermal-magnetic trip unit with fixed thermal and fixed magnetic settings, providing reliable long-time and instantaneous (LI) overcurrent and short-circuit protection.

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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
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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!

    Was this helpful?
  • 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

    Was this helpful?
  • 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

    Was this helpful?
  • 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.

    Was this helpful?
  • 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.

    Was this helpful?