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Eaton / Cutler-Hammer FDB3225 Molded Case Circuit Breaker

  • 225A
  • 3 Pole
  • Unit Mount
Eaton / Cutler-Hammer FDB3225
Molded Case Circuit Breaker
Brand Eaton / Cutler-Hammer
SKU FDB3225
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  • 225A
  • 3 Pole
  • Unit Mount

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Eaton / Cutler-Hammer FDB3225 - 225A 3 Pole Molded Case Circuit Breaker

Eaton / Cutler-Hammer FDB3225 - 225A 3 Pole Molded Case Circuit Breaker

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$912.05 No Stock

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Description

Designed to handle demanding electrical loads, the Eaton FDB3225 delivers 225 amps of thermal-magnetic protection in a compact F-Frame footprint. This 3-pole unit features fixed long-time and instantaneous (LI) trip settings, ensuring precise defense against overloads and short circuits in commercial environments. The breaker installs into Series C panelboards, switchboards, and motor control centers. Rated for 14 kAIC at 480VAC, it includes load-side lugs and supports reverse-feed setups.

Specifications

Key specifications
Brand Eaton / Cutler-Hammer
Series FDB
Amperage 225A
Poles 3
Mounting Style Unit Mount
Voltage 600VAC, 250VDC
Phase 3
AIC Rating 18kA @ 240VAC, 14kA @ 480VAC, 14kA @ 600VAC, 10kA @ 250VDC
Fit and installation
Frame Type F
Terminal Type Lugs
For Use With Eaton Series C Panelboards, Motor Control Centers, Switchboards
Wire Gauge 4 AWG - 4/0 AWG (Cu/Al)
Max Wire 4/0 AWG
Min Wire 4 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, Motor Operator, Handle Lock
Accessories Load Side Lugs
Standards CSA C22.2 No. 5, IEC 60947-2, NEMA AB-1, UL 489
Approval CE, CSA, UL
Temp Rating 40C
Construction Features HACR Rated, Reverse Feed, Non-Interchangeable Trip

Product FAQs

7 answers
Is the FDB3225 a direct replacement for older Westinghouse FDB breakers?

Yes. Eaton acquired the Westinghouse distribution equipment division, and the Series C FDB3225 is a direct, drop-in replacement for legacy Westinghouse FDB3225 breakers.

What is the modern Eaton replacement for the FDB3225?

The FDB3225 is being transitioned to the Eaton Power Defense series. The direct modern equivalent is a Power Defense Frame 2 (PDG2) breaker, such as the PDG23F0225TFFL, which shares the same footprint and panelboard compatibility.

Which panelboards accept the FDB3225 breaker?

This F-frame breaker is designed for installation in Eaton Series C panelboards, specifically Pow-R-Line 3A (PRL3A) and Pow-R-Line 4 (PRL4) models, as well as compatible motor control centers and switchboards.

Can the FDB3225 be used in reverse-feed applications?

Yes. Standard Eaton thermal-magnetic breakers without dedicated line and load markings, including the FDB3225, are suitable for reverse-feed applications. A retaining bracket must be installed when back-feeding a panelboard to comply with NEC requirements.

Are the standard lugs on the FDB3225 removable?

Yes, the factory-installed mechanical lugs can be removed. This allows the breaker to be fitted with alternate lug kits, multi-wire terminals, or bus connections depending on the specific enclosure requirements.

Can this 3-pole breaker be used in a single-phase system?

Yes. A 3-pole Eaton F-frame breaker can be applied in a single-phase system by wiring the two outer poles. The interruption rating remains valid based on the number of poles breaking the ungrounded legs of the power supply.

How should the thermal-magnetic trip unit be tested?

Testing should be performed using primary current injection in accordance with NETA maintenance testing specifications to verify the fixed long-time and instantaneous trip functions.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 2 reviews
Rating
Ratings
2 reviews
  • B
    Brent
    Verified Buyer
    Reviewing
    Eaton / Cutler-Hammer FDB3060 - 60A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/18/26
    Breaker was as expected.

    Breaker was clean, you could not tell it was used.

  • RF
    Russell F.
    Verified Buyer
    Reviewing
    Eaton / Cutler-Hammer FDB3025 - 25A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    2/24/26
    Right product, right time

    This is what I needed, and I got it in time.