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Eaton / Cutler-Hammer FD1100 Molded Case Circuit Breaker
- 100A
- 1 Pole
- Bolt-On
Eaton / Cutler-Hammer
FD1100
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
FD1100
Quantity
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Eaton / Cutler-Hammer FD1100 - 100A 1 Pole Molded Case Circuit Breaker
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Description
Engineered for heavy-duty power distribution, the Eaton FD1100 is a single-pole, 100-amp molded case circuit breaker from the proven Series C family. It utilizes standard bolt-on mounting for secure integration into compatible switchboards and motor control centers. The breaker features fixed thermal and magnetic trip functions, providing reliable LI protection with a 35kA interrupt rating at 277VAC. Note that replacing this unit with the newer PDG21G0100TFFL requires a retrofit kit.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | FD1100 |
| Series | FD |
| Amperage | 100A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 277VAC, 125VDC, 347VAC |
| Phase | 1 |
| AIC Rating | 35kA @ 277VAC, 10kA @ 125VDC, 18kA @ 347VAC |
| Frame Type | FD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Panelboards, Switchboards, Motor Control Centers |
| 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, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs |
| 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
8 answersWhich panelboards and enclosures accept the FD1100 breaker?
The FD1100 is compatible with Eaton Series C panelboards, switchboards, and motor control centers configured for F-Frame bolt-on circuit breakers.
How is the FD1100 secured inside the panelboard?
It is a bolt-on breaker that fastens directly to the panel bus using mounting screws, ensuring a secure connection in high-vibration or heavy-duty industrial environments.
What is the physical width of this 1-pole breaker?
The FD1100 has a width of 1.38 inches, which is the standard dimension per pole for Eaton Series C F-Frame circuit breakers.
Can the FD1100 be reverse fed?
Yes, this thermal-magnetic breaker is suitable for reverse-feed applications, meaning power can be supplied to either the line or load terminals.
What does the "LI" trip function code mean on the FD1100?
The "LI" code indicates the breaker provides Long-Time (thermal) overload protection and Instantaneous (magnetic) short-circuit protection. Both settings are fixed on this model.
Is the FD1100 HACR rated?
Yes, like most Eaton Series C F-Frame breakers, it is HACR rated, making it suitable for use with heating, air conditioning, and refrigeration equipment.
What applications typically use the 347VAC rating on this breaker?
The 347VAC rating is commonly used in Canadian commercial and industrial lighting systems operating on 600Y/347V electrical distribution networks.
Can I replace an older Cutler-Hammer FD1100 with a new Eaton FD1100?
Yes, Eaton acquired Cutler-Hammer and continues to manufacture the Series C F-Frame breakers under the Eaton brand. The physical dimensions and mounting are identical.
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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.