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Eaton / Cutler-Hammer FDB2090 Molded Case Circuit Breaker

  • 90A
  • 2 Pole
  • Unit Mount
Eaton / Cutler-Hammer FDB2090
Molded Case Circuit Breaker
Brand Eaton / Cutler-Hammer
SKU FDB2090
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  • 90A
  • 2 Pole
  • Unit Mount

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Eaton / Cutler-Hammer FDB2090 - 90A 2 Pole Molded Case Circuit Breaker

Eaton / Cutler-Hammer FDB2090 - 90A 2 Pole Molded Case Circuit Breaker

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$158.45 No Stock

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Description

The Eaton FDB2090 is a 2-pole, 90A molded case circuit breaker from the Series C F-Frame lineup. Built for commercial and industrial applications, it provides dependable long-time and instantaneous (LI) protection. Equipped with load side lugs, it integrates into Eaton Series C panelboards and motor control centers. It easily replaces legacy Cutler-Hammer FD2090 models. Rated 14kAIC at 480VAC, this HACR-rated breaker features a fixed thermal-magnetic trip and reverse feed capability.

Specifications

Key specifications
Brand Eaton / Cutler-Hammer
Part Number FDB2090-R
Series FDB
Amperage 90A
Poles 2
Mounting Style Unit Mount
Voltage 240VAC, 480VAC, 600VAC, 250VDC
Phase 1
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 14 AWG - 1/0 AWG (Cu/Al)
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, Motor Operator, Handle Lock
Accessories Load Side Lugs
Standards CSA C22.2 No. 5, NEMA AB-1, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated, Reverse Feed, Non-Interchangeable Trip

Product FAQs

6 answers
What panelboards are compatible with the FDB2090 circuit breaker?

The FDB2090 is designed for use in Eaton and Cutler-Hammer Series C panelboards, motor control centers, and switchboards. It is also a direct replacement for legacy Westinghouse Series C F-frame enclosures.

What is the difference between Eaton FDB, FD, and HFD circuit breakers?

The primary difference is the interrupting capacity. The FDB series offers standard interrupting ratings, such as 14kAIC at 480VAC. The FD and HFD series provide higher interrupting capacities for systems with higher available fault currents. All three share the exact same physical F-frame dimensions and mounting footprint.

Can the Eaton FDB2090 be reverse fed?

Yes. Standard thermal-magnetic Series C F-frame breakers like the FDB2090 do not have line and load markings and are suitable for reverse feed applications. Always verify local codes and use an approved retaining hold-down kit when back-feeding a breaker in a panel.

What wire sizes are accepted by the FDB2090 terminals?

The standard factory-installed lugs on the FDB2090 accept wire gauges from 14 AWG up to 1/0 AWG. The terminals are rated for both copper and aluminum conductors.

Is the FDB2090 rated for DC voltage applications?

Yes, this breaker is rated for up to 250VDC with a 10kAIC interrupting capacity. This makes it suitable for specific direct current control and distribution applications in addition to standard AC systems.

Can I use the FDB2090 to replace an older Westinghouse FDB2090?

Yes. Eaton acquired the Westinghouse distribution equipment division. The modern Eaton or Cutler-Hammer FDB2090 is the exact same F-frame breaker and serves as a direct drop-in replacement for the legacy Westinghouse model.

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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.