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Eaton / Cutler-Hammer FD1020L Molded Case Circuit Breaker
- 20A
- 1 Pole
- Unit Mount
Eaton / Cutler-Hammer
FD1020L
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
FD1020L
Quantity
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Eaton / Cutler-Hammer FD1020L - 20A 1 Pole Molded Case Circuit Breaker
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Description
Part of the Series C family, this single-pole 20A breaker delivers robust industrial performance. It utilizes a fixed thermal-magnetic trip unit for commercial applications. The unit-mount design includes line and load lugs, allowing installation into standard enclosures. It serves as a legacy solution, replaced by the modern PDG11G0020TFFJ. Rated for 35kA interrupting capacity at 277VAC, it handles demanding fault currents. It includes HACR and SWD ratings for lighting loads.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | FD1020L |
| Series | FD |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Unit Mount |
| Voltage | 277VAC, 125VDC, 347VAC |
| Phase | 1 |
| AIC Rating | 35kA @ 277VAC, 10kA @ 125VDC, 18kA @ 347VAC |
| Frame Type | F |
|---|---|
| Terminal Type | Lugs |
| For Use With | Enclosures, Switchboards (Unit Mount) |
| 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 |
|---|---|
| Accessories | Line and Load Lugs |
| Standards | CSA C22.2 No. 5, HACR, NEMA AB 1, SWD, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip, HID Rated, SWD Rated |
Product FAQs
7 answersWhat does the L suffix in the FD1020L catalog number indicate?
The L suffix means the circuit breaker is factory-equipped with both line and load terminals. Standard Eaton Series C F-frame breakers without this suffix typically include load terminals only.
Is the Eaton FD1020L backward compatible with older Westinghouse panels?
Yes, Eaton Series C F-frame circuit breakers are direct replacements for legacy Cutler-Hammer and Westinghouse breakers of the same frame size and type.
Can the FD1020L be used for switching lighting circuits?
Yes, this 20A breaker carries an SWD (Switching Duty) rating. This means it is approved for safely switching fluorescent lighting loads on a regular basis without degrading the internal contacts.
Is this circuit breaker suitable for HVAC equipment?
Yes, the FD1020L is HACR rated. It is approved for use with heating, air conditioning, and refrigeration equipment that requires a breaker with this specific safety designation.
Can the FD1020L be reverse fed in a panel?
Yes, standard thermal-magnetic Series C circuit breakers can be reverse fed. They do not contain line-specific electronic components that would restrict the direction of power flow.
Can the trip curve on the FD1020L be modified in the field?
No, this breaker uses a non-interchangeable trip unit with fixed thermal and fixed magnetic settings. It is permanently calibrated at the factory and cannot be adjusted or swapped for a different trip unit.
What safety checks are required before installing this F-frame breaker?
Always de-energize the switchboard or enclosure before beginning work. You must also verify that the system voltage and available fault current do not exceed the maximum interrupting ratings of the breaker to prevent arc flash hazards.
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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.