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Eaton / Cutler-Hammer FD1050L Molded Case Circuit Breaker
- 50A
- 1 Pole
- Unit Mount
Eaton / Cutler-Hammer
FD1050L
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
FD1050L
Quantity
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Eaton / Cutler-Hammer FD1050L - 50A 1 Pole Molded Case Circuit Breaker
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Description
Built for versatile industrial applications, the Eaton FD1050L is a 1-pole, 50A molded case circuit breaker. As part of the Series C F-frame lineup, it delivers reliable long-time and instantaneous (LI) protection. Unlike bolt-on variants, this unit-mount breaker includes line and load lugs for independent mounting in enclosures, switchboards, and motor control centers. It is replaced by the PDG21G0050TFFJ. Delivering a 35kAIC rating at 277VAC, it is HACR rated and reverse feed capable.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | FD1050L |
| Series | FD |
| Amperage | 50A |
| Poles | 1 |
| Mounting Style | Unit Mount |
| Voltage | 277VAC, 125VDC, 347VAC |
| Phase | 1 |
| AIC Rating | 35kA @ 277VAC, 10kA @ 125VDC, 18kA @ 347VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Eaton Series C Panelboards, Switchboards, Motor Control Centers, Enclosures |
| Wire Gauge | 14-1/0 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 | Line and Load Lugs |
| Standards | CSA C22.2 No. 5, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, HID Rated, Non-Interchangeable Trip |
Product FAQs
6 answersWhat is the difference between the Eaton FD1050 and the FD1050L?
The "L" suffix in the FD1050L catalog number indicates that the circuit breaker is supplied with factory-installed line and load terminals (lugs). The base FD1050 is typically supplied with load-side terminals only, which is standard for Eaton F-Frame breakers.
What base mounting hardware is required to install this single-pole F-Frame breaker in an enclosure?
To mount a single-pole Series C F-Frame breaker like the FD1050L into an enclosure, use Eaton base mounting hardware kit part number 624B375G01 (Imperial) or 4218B80G09 (Metric).
Can the FD1050L be used in direct current (DC) applications?
Yes, this thermal-magnetic breaker is rated for DC applications up to 125VDC with an interrupting capacity of 10kAIC. It is suitable for use in DC control panels, battery systems, and other low-voltage DC circuits.
Which Eaton panelboards are compatible with the FD1050L circuit breaker?
The FD1050L is designed for use in Eaton Series C panelboards, switchboards, and motor control centers that accept F-Frame breakers. It is a unit-mount (feed-thru) breaker, meaning it bolts or mounts directly to the chassis rather than plugging onto a busbar.
Can the Eaton FD1050L replace an older Westinghouse FD breaker?
Yes. Eaton acquired the Westinghouse distribution equipment line, and the Series C family is fully backward compatible. The Eaton or Cutler-Hammer FD1050L is a direct replacement for legacy Westinghouse FD1050L breakers, sharing the exact same physical dimensions and mounting footprint.
Does the FD1050L provide ground fault protection?
No. The FD1050L is a standard thermal-magnetic breaker providing only long-time and instantaneous (LI) overcurrent and short-circuit protection. It does not include built-in ground fault (GFCI) or equipment protection (EPD) features.
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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.