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Eaton / Westinghouse FB3035 Molded Case Circuit Breaker
- 35A
- 3 Pole
- Bolt-On
Eaton / Westinghouse
FB3035
Molded Case Circuit Breaker
Brand
Eaton / Westinghouse
SKU
FB3035
Quantity
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Eaton / Westinghouse FB3035 - 35A 3 Pole Molded Case Circuit Breaker
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Description
Engineered to keep legacy facilities running smoothly, the Eaton FB3035 provides 35 amps of robust circuit protection. It is specifically calibrated for 40C ambient environments and mounts seamlessly into vintage Westinghouse commercial panelboards. This three-pole bolt-on breaker utilizes proven AB De-Ion arc extinction to safely interrupt faults up to 18kA at 240V. It acts as an exact physical and electrical match for discontinued FDB3035 and FD3035 units, eliminating the need for retrofits.Specifications
| Brand | Eaton / Westinghouse |
|---|---|
| Part Number | FB3035 |
| Series | FB |
| Amperage | 35A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 18kA @ 240VAC, 14kA @ 480VAC, 14kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | FB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Westinghouse Panelboards, Motor Control Centers |
| Wire Gauge | 14 AWG - 2 AWG (Cu/Al) |
| Max Wire | 2 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 |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Non-Interchangeable Trip, 40C Ambient Calibration, AB De-Ion Arc Extinction |
Product FAQs
6 answersWhat panelboards are compatible with the FB3035 circuit breaker?
This F-frame breaker is designed for use in vintage Westinghouse panelboards, Eaton Pow-R-Line C panelboards, and compatible motor control centers.
Can the Eaton FB3035 replace an older Westinghouse FB3035 breaker?
Yes, Eaton acquired the Westinghouse distribution equipment business. The Eaton FB3035 shares the exact same physical dimensions and electrical ratings, making it a direct drop-in replacement for vintage Westinghouse FB3035 breakers.
What wire sizes and materials are accepted by the standard lugs on the FB3035?
The factory-installed lugs are dual-rated for both copper and aluminum conductors, accepting wire sizes from 14 AWG to 2 AWG.
Is the FB3035 suitable for use in DC electrical systems?
Yes, this breaker is rated for DC applications up to 250VDC with a 10kA interrupting capacity, in addition to its standard AC voltage ratings.
How does the FB3035 mount into a panelboard?
It is a bolt-on molded case circuit breaker. It secures directly to the panelboard bus using mounting bolts, providing a rigid and secure connection.
What does the LI trip function indicate on this breaker?
The LI designation means it features a thermal-magnetic trip unit with Long-Time (thermal) and Instantaneous (magnetic) protection. Both the thermal overload and instantaneous short-circuit trip points are fixed.
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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.