Eaton / Cutler-Hammer FD2125L Molded Case Circuit Breaker
- 125A
- 2 Pole
- Unit Mount
Quantity
Eaton / Cutler-Hammer FD2125L - 125A 2 Pole Molded Case Circuit Breaker
New
Quantity
Description
Part of the Series C family, this 125A F-Frame molded case circuit breaker delivers robust long-time and instantaneous (LI) trip functions for commercial and industrial systems. It installs into Eaton switchboards, motor control centers, and standalone enclosures requiring unit-mount configurations. Rated for 65kAIC at 240V and 35kAIC at 480V, the device comes standard with line and load lugs. Note that this legacy profile is being transitioned to the newer Power Defense PDG22G0125TFFJ series.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | FD2125L |
| Series | FD |
| Amperage | 125A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | F |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Panelboards, Switchboards, Motor Control Centers, F-Frame Enclosures |
| 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 | Line and Load 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, Non-Interchangeable Trip |
Product FAQs
7 answersWhat panels and enclosures are compatible with the FD2125L?
This F-frame breaker is designed for use in Eaton Series C panelboards, switchboards, motor control centers, and standalone F-frame enclosures.
Does the FD2125L replace older Westinghouse or Cutler-Hammer breakers?
Yes, Eaton acquired the Cutler-Hammer and Westinghouse lines. The FD2125L is a direct replacement for older Westinghouse and Cutler-Hammer Series C F-frame breakers with the exact same catalog number.
What does the L suffix indicate in the FD2125L catalog number?
The L suffix indicates that the circuit breaker comes factory equipped with standard line and load terminals (lugs).
What wire sizes do the standard lugs on the FD2125L accept?
The included lugs accommodate wire sizes from 4 AWG to 4/0 AWG for both copper and aluminum conductors.
Can the FD2125L be used in direct current (DC) applications?
Yes, this breaker is rated for 250VDC applications and provides a 10kA interrupting capacity at that voltage.
Are the trip settings adjustable on this breaker?
No, the FD2125L features a fixed thermal and fixed magnetic trip unit. Neither the long time nor the instantaneous trip functions can be adjusted in the field.
Is this breaker designed for DIN rail mounting?
No, the FD2125L is a unit mount breaker designed to be bolted directly to the chassis or mounting pan of the enclosure.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
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.