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Eaton / Cutler-Hammer FB3100NL Molded Case Circuit Breaker
- 100A
- 3 Pole
- Bolt-On
Eaton / Cutler-Hammer
FB3100NL
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
FB3100NL
Quantity
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Eaton / Cutler-Hammer FB3100NL - 100A 3 Pole Molded Case Circuit Breaker
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Description
Designed for heavy-duty industrial environments, this 100-amp thermal-magnetic breaker provides dependable overcurrent protection across three phases. The bolt-on configuration fits seamlessly into Cutler-Hammer and Westinghouse Pow-R-Line motor control centers. Capable of handling up to 600VAC, it includes reverse feed functionality and serves as an ideal substitute for the FDB3100. Its fixed trip settings ensure consistent performance without complex calibration requirements.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | FB3100NL-R |
| Series | FB |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 18kA @ 240VAC, 14kA @ 480VAC, 14kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Westinghouse / Eaton Pow-R-Line Panelboards, Switchboards, Motor Control Centers |
| 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 |
|---|---|
| Accessories | Mounting Hardware |
| Standards | NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed |
Product FAQs
9 answersWhat equipment is the FB3100NL compatible with?
This breaker is designed for installation in Westinghouse and Eaton Pow-R-Line panelboards, switchboards, and motor control centers.
What size wire do the lugs on the FB3100NL accept?
The included lugs are rated for both copper and aluminum (Cu/Al) conductors ranging from 14 AWG to 1/0 AWG.
Are the trip settings on the FB3100NL adjustable?
No, this breaker features fixed thermal and fixed magnetic trip elements. The long-time and instantaneous (LI) trip functions are factory set and cannot be field adjusted.
Can the FB3100NL be used in direct current (DC) systems?
Yes, in addition to its AC ratings, this breaker is rated for DC applications up to 250VDC with a 10kA interrupting capacity.
Is the FB3100NL suitable for reverse feed applications?
Yes, this breaker is designed with reverse feed capability, allowing it to be wired in either direction.
Can the FB3100NL be used as a replacement for the FDB3100?
Yes, the FB3100NL serves as a direct substitute for the Eaton and Cutler-Hammer FDB3100 molded case circuit breaker.
Is this breaker HACR rated?
Yes, the FB3100NL is HACR rated, making it suitable for protecting heating, air conditioning, and refrigeration equipment.
What frame family does the FB3100NL belong to?
It is part of the legacy Eaton and Cutler-Hammer F-Frame family of molded case circuit breakers.
How does the FB3100NL mount into the enclosure?
It is a bolt-on circuit breaker that requires a bolted connection directly to the panel bus. It is not compatible with plug-on load centers.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 2 reviews.
Total 5 star reviews: 2 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
2 reviews
- SDSal D.Verified BuyerReviewingEaton / Cutler-Hammer FB3125 - 125A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/16/26Breakers
Really happy with the breakers and with the quickness they were delivered
- CBChristopher B.ReviewingEaton / Cutler-Hammer FB3015L - 15A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars11/8/20AWESOME JOB
Quick response and delivery. Exactly what I wanted.