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Eaton / Westinghouse FB3030 Molded Case Circuit Breaker
- 30A
- 3 Pole
- Bolt-On
Eaton / Westinghouse
FB3030
Molded Case Circuit Breaker
Brand
Eaton / Westinghouse
SKU
FB3030
Quantity
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Eaton / Westinghouse FB3030 - 30A 3 Pole Molded Case Circuit Breaker
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Description
Serving as an exact drop-in replacement for aging electrical systems, the 30A Eaton FB3030 maintains continuity in commercial and industrial facilities. It integrates seamlessly with classic Westinghouse panelboards and motor control centers. This three-pole, 600VAC molded case circuit breaker features fixed thermal-magnetic trip units and AB De-Ion arc extinction technology. It replaces FDB3030 and FD3030 units, offering an 18kAIC rating at 240V to keep legacy infrastructure operational.Specifications
| Brand | Eaton / Westinghouse |
|---|---|
| Part Number | FB3030-R |
| Series | FB |
| Amperage | 30A |
| 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 Panelboards, Motor Control Centers |
| Wire Gauge | 14 AWG - 1/0 AWG (Al/Cu) |
| 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 | Load Side Lugs Included |
| Standards | NEMA AB-1, UL 489, W-C-375b |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | AB De-Ion, Non-Interchangeable Trip |
Product FAQs
5 answersIs the Westinghouse FB3030 still manufactured, or has it been replaced?
The FB3030 is a legacy F-frame circuit breaker that is no longer in active production. When transitioning to newer components, the Eaton Series C FD3030 is the recommended direct replacement, offering the same 30A rating and physical dimensions.
Which panelboards are compatible with the FB3030 circuit breaker?
This bolt-on F-frame breaker is designed to install into classic Westinghouse and Eaton Cutler-Hammer panelboards, specifically the CDP and FDP series, as well as compatible motor control centers.
What are the lug torque specifications for the FB3030?
For standard 3T100FB slotted steel lugs accepting 14-1/0 AWG wire, the tightening torque depends on the wire gauge: 35 lb-in for #14-10 AWG, 40 lb-in for #8 AWG, 45 lb-in for #6-4 AWG, and 50 lb-in for #3-1/0 AWG. Always verify against the breaker nameplate before energizing.
What should be considered when applying the FB3030 in a 250VDC system?
While rated for 10kA at 250VDC, Eaton specifies that these DC ratings apply to substantially non-inductive circuits. Depending on your grounding configuration and exact voltage, you may need to wire multiple poles in series to safely break the DC arc.
What is the purpose of the AB De-Ion construction in this breaker?
The FB3030 features Westinghouse's signature De-Ion arc chutes, which are designed to safely and rapidly extinguish electrical arcs that occur during short-circuit faults. This minimizes contact wear and protects surrounding equipment from arc flash damage.
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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.