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Eaton / Cutler-Hammer FDC3125L Molded Case Circuit Breaker
- 125A
- 3 Pole
- Unit Mount
Eaton / Cutler-Hammer
FDC3125L
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
FDC3125L
Quantity
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Eaton / Cutler-Hammer FDC3125L - 125A 3 Pole Molded Case Circuit Breaker
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Description
Designed for standalone or enclosure mounting, this 125-amp F-Frame breaker comes standard with both line and load lugs for immediate wiring. It integrates seamlessly into Eaton Pow-R-Line C switchboards and motor control centers requiring unit-mount configurations. Delivering robust current-limiting performance, it achieves a 100kA interrupting rating at 480VAC. The thermal-magnetic trip unit provides fixed long-time and instantaneous protection for heavy-duty electrical systems.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | FDC3125L |
| Series | FDC |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 100kA @ 480VAC, 35kA @ 600VAC, 22kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Eaton Pow-R-Line C Panelboards, Switchboards, Motor Control Centers |
| 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 |
|---|---|
| Accessories | Line and Load Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Current Limiting, Reverse Feed |
Product FAQs
7 answersWhat is the difference between the FDC3125 and the FDC3125L?
The "L" suffix indicates that the breaker comes factory-equipped with standard pressure line and load lugs. The base FDC3125 typically comes with load-side lugs only or requires lugs to be ordered separately.
What does the "C" in the FDC series designation mean?
In the Eaton Series C F-frame family, the "C" indicates the extra-high interrupting capacity tier. The FDC3125L delivers up to 200kAIC at 240VAC and 100kAIC at 480VAC, which is significantly higher than standard FD or high-interrupting HFD frames.
Can the FDC3125L be reverse fed?
Yes. Eaton Series C F-frame breakers, including the FDC3125L, are suitable for reverse feed applications.
What is the recommended tightening torque for the line and load lugs on this breaker?
For the standard 4 AWG to 4/0 AWG lugs (typically part number 3TA225FD), the required tightening torque is 120 lb-in (13.6 Nm). Always verify with the label on the breaker or lug before terminating.
What types of enclosures or equipment is the FDC3125L designed to fit?
This unit-mount breaker is designed for installation in Eaton Pow-R-Line C panelboards, switchboards, motor control centers, and standalone F-frame enclosures.
Is the FDC3125L suitable for use with HVAC equipment?
Yes, this breaker is HACR rated, making it suitable for group motor applications like heating, air conditioning, and refrigeration equipment.
Are the thermal and magnetic trip settings adjustable on the FDC3125L?
No. This breaker features a fixed thermal and fixed magnetic (LI) trip unit. The trip settings are non-interchangeable and cannot be adjusted in the field.
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Reviews
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Customers rate this product 5.0 out of 5 based on 2 reviews.
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2 reviews
- RPRondall P.ReviewingEaton / Cutler-Hammer FDC3030 - 30A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars2/24/22Maintenance
Where do I get invoice
- AMAnthony M.ReviewingEaton / Cutler-Hammer FDC3200L - 200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars2/4/21Emerald was very helpful
Emerald was very helpful