Eaton / Cutler-Hammer FD2045 Molded Case Circuit Breaker
- 45A
- 2 Pole
- Panel Mount
Quantity
Eaton / Cutler-Hammer FD2045 - 45A 2 Pole Molded Case Circuit Breaker
New
Quantity
Description
Engineered for heavy-duty use, the Eaton FD2045 is a 2-pole, 45-amp molded case circuit breaker. It utilizes fixed thermal and magnetic trip units to provide dependable LI protection in commercial and industrial environments. The F-frame device mounts into Series C panelboards, switchboards, and motor control centers. It is a direct cross-reference for older installations, while the PDG22G0045TFFJ serves as its modern Power Defense replacement.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | FD2045 |
| Series | FD |
| Amperage | 45A |
| Poles | 2 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | FD |
|---|---|
| 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 |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| 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
8 answersWhat types of equipment are compatible with the FD2045 breaker?
This F-Frame breaker is designed for use in Eaton Series C panelboards, motor control centers, and switchboards.
What wire gauge and material can be used with the load side terminals?
The standard lugs accept wire sizes ranging from 14 AWG to 1/0 AWG. Both copper (Cu) and aluminum (Al) conductors are supported.
How does the FD frame differ from other Series C F-Frame breakers like the FDB or HFD?
The FD designation indicates a specific interrupting capacity tier within the Series C family. It provides a higher interrupting rating than the standard FDB frame but a lower rating than the high-interrupting HFD or FDC frames.
Can the FD2045 be utilized in direct current (DC) systems?
Yes, this thermal magnetic breaker is rated for DC applications up to 250VDC, providing a 10kA interrupting capacity for those circuits.
Are the thermal and magnetic trip elements adjustable on this model?
No. This specific breaker features a fixed thermal and fixed magnetic trip unit, meaning the long-time and instantaneous trip functions cannot be field-adjusted.
Is this a direct replacement for legacy Westinghouse or Cutler-Hammer FD2045 breakers?
Yes. Eaton acquired the Cutler-Hammer and Westinghouse molded case circuit breaker lines. A modern Eaton FD2045 will directly replace older Westinghouse or Cutler-Hammer breakers with the exact same catalog number.
What type of physical connection is required to install this breaker?
This is a bolt-on circuit breaker, meaning it requires bolted connections to the panelboard bus bars rather than a plug-on or I-Line style mounting.
What trip functions are provided by the LI designation on this breaker?
The LI trip function code indicates that the breaker provides Long-Time (thermal) protection against overloads and Instantaneous (magnetic) protection against short circuits.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 14 reviews.
- SGStephen G.Verified BuyerReviewingEaton / Cutler-Hammer FD3175 - 175A 3 Pole Molded Case Circuit BreakerI recommend this productRated 4 out of 5 stars7/13/26175amp molded case circuit breaker
The breaker we purchased was as advertised. The breaker fit perfectly. We purchased reconditioned breaker and it seems to be working properly, accordingly to the golf course maintenance team that supervises the irrigation system.
Next day shipping came quickly even though the 4th of July was coming.
I wish it came with new installations hardware but that isn’t a deal breaker.
- MBMichael B.Verified BuyerReviewingEaton / Cutler-Hammer FD3040 - 40A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars1/7/26Worked perfectly
This circuit breaker installed as expected and performed flawlessly.
- DQDavid Q.ReviewingEaton / Cutler-Hammer FD2080 - 80A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/17/23A+ Seller
Breaker came as described and was shipped out fast!
- OCOscar C.ReviewingEaton / Cutler-Hammer FD3175 - 175A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/20/23Great Service
Totally recommended
- MLMichael L.ReviewingEaton / Cutler-Hammer FD2050 - 50A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars3/2/22Quick and Easy
They had what we needed and were able to ship it quickly.