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Eaton / Cutler-Hammer FD2125 Molded Case Circuit Breaker
- 125A
- 2 Pole
- Bolt-On
Eaton / Cutler-Hammer
FD2125
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
FD2125
Quantity
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Eaton / Cutler-Hammer FD2125 - 125A 2 Pole Molded Case Circuit Breaker
New
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Eaton / Cutler-Hammer FD2125 - 125A 2 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | FD2125 |
| Series | FD |
| Amperage | 125A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| 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 | 4 AWG - 4/0 AWG (Cu/Al) |
| Max Wire | 4/0 AWG |
| Min Wire | 4 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 (Included) |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed |
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Eaton / Cutler-Hammer FD2125 - 125A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | FD2125-R |
| Series | FD |
| Amperage | 125A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| 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 | 4 AWG - 4/0 AWG (Cu/Al) |
| Max Wire | 4/0 AWG |
| Min Wire | 4 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 (Included) |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed |
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Description
Engineered for robust power distribution, the Eaton FD2125 is a 125A, 2-pole molded case circuit breaker. It utilizes fixed thermal and magnetic trip units to safeguard commercial and industrial circuits against overloads and short circuits. Designed for bolt-on installation, it integrates seamlessly into Eaton Series C panelboards, switchboards, and F-Frame enclosures. This HACR-rated breaker delivers a 35kAIC interrupting capacity at 480VAC and fully supports reverse feed applications.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | FD2125 |
| Series | FD |
| Amperage | 125A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| 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 | 4 AWG - 4/0 AWG (Cu/Al) |
| Max Wire | 4/0 AWG |
| Min Wire | 4 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 (Included) |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed |
Product FAQs
7 answersWhat panelboards are compatible with the FD2125 circuit breaker?
The FD2125 is designed for use in Eaton Series C panelboards, including the PRL3a and PRL4, as well as compatible motor control centers and switchboards that accept F-frame breakers.
What is the recommended torque for the load terminals on the FD2125?
For the standard 4 AWG to 4/0 AWG wire range, the recommended terminal torque is 120 lb-in (13.6 Nm). Always verify the exact torque value printed on the breaker nameplate or lug before installation.
Can the FD2125 circuit breaker be reverse fed?
Yes, Eaton Series C F-frame thermal-magnetic circuit breakers are suitable for reverse feed applications.
What is the difference between the FD2125, FDB2125, and HFD2125?
These breakers share the same physical F-frame footprint and 125-amp rating but differ in interrupting capacity. The FDB2125 has a lower AIC rating, the FD2125 is the standard tier, and the HFD2125 offers a higher AIC rating.
Are internal accessories field-installable on this breaker?
Yes, standard Series C F-frame internal accessories, such as shunt trips and auxiliary switches, can be field-installed in the left or right pole cavities of the FD2125.
Does the FD2125 provide ground fault protection?
No, this is a standard thermal-magnetic breaker equipped with fixed long-time and instantaneous trip functions. It does not include built-in ground fault or equipment protection.
What is the standard lug catalog number for this breaker?
The standard aluminum lug for the 125-amp F-frame breaker is the TA225FD1, which accepts 4 AWG to 4/0 AWG copper or aluminum wire.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 14 reviews.
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Rating
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.