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Eaton / Westinghouse FB3020 Molded Case Circuit Breaker
- 20A
- 3 Pole
- Bolt-On
Eaton / Westinghouse
FB3020
Molded Case Circuit Breaker
Brand
Eaton / Westinghouse
SKU
FB3020
Quantity
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Eaton / Westinghouse FB3020 - 20A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial and industrial applications, the Eaton FB3020 provides robust overcurrent protection in a 3-pole, 600VAC package. This legacy F-frame breaker is designed to mount into vintage Westinghouse CDP and FDP panelboards, as well as classic motor control centers. Featuring proven AB De-Ion technology, it delivers a 14kAIC rating at 480V. For modern upgrades, this unit is commonly replaced by the FDB3020 or FD3020 series.Specifications
| Brand | Eaton / Westinghouse |
|---|---|
| Part Number | FB3020-R |
| Series | FB |
| Amperage | 20A |
| 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 CDP Panelboards, FDP 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 | Line and Load Terminals |
| Standards | NEMA AB-1, UL 489, W-C-375b |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | AB De-Ion Technology |
Product FAQs
5 answersWhat is the modern replacement for the legacy FB3020 circuit breaker?
For modern upgrades, the Eaton and Westinghouse FB3020 is commonly replaced by the Series C FDB3020 or FD3020 circuit breakers.
Which panelboards accept the FB3020 circuit breaker?
This legacy F-frame breaker is designed for bolt-on installation in vintage Westinghouse CDP and FDP panelboards, as well as classic motor control centers.
Can the FB3020 be reverse fed in a panelboard?
Yes, standard thermal-magnetic FB breakers without Line and Load markings are suitable for reverse feeding. When used as a back-fed main breaker, the National Electrical Code requires it to be secured with an approved retaining bracket.
Does the FB3020 require a retrofit kit to mount in a Westinghouse CDP panelboard?
No, as a legacy F-frame breaker, the FB3020 mounts directly into vintage Westinghouse CDP and FDP panelboards using standard bus connection hardware. Retrofit kits are typically only required when upgrading to modern Series C replacements.
How does the AB De-Ion technology improve the safety of the FB3020?
The proprietary AB De-Ion arc extinguisher technology rapidly cools and quenches electrical arcs generated during short circuits or severe overloads. This protects the internal contacts from damage and ensures safe, reliable interruption of fault currents.
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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.