Free Shipping Over $99
Eaton / Cutler-Hammer FB3090 Molded Case Circuit Breaker
- 90A
- 3 Pole
- Bolt-On
Eaton / Cutler-Hammer
FB3090
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
FB3090
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Eaton / Cutler-Hammer FB3090 - 90A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Similar Items
80A 3 Pole Molded Case Circuit Breaker
125A 3 Pole Molded Case Circuit Breaker
50A 3 Pole Molded Case Circuit Breaker
Description
Belonging to the legacy F-frame family, this 90-amp, 3-pole molded case circuit breaker provides essential overcurrent protection for commercial facilities. It features fixed thermal and magnetic trip settings for consistent performance. Designed for bolt-on installation, the unit mounts into classic Westinghouse and Eaton Pow-R-Line panelboards or switchboards. It serves as a reliable substitute for FDB3090 models. Rated 18kAIC at 240V, it handles standard fault currents effectively.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | FB3090-R |
| Series | FB |
| Amperage | 90A |
| 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 | Load Side Lugs Included |
| Standards | NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Common Trip |
Product FAQs
5 answersWhich panelboards are compatible with the FB3090 circuit breaker?
This bolt-on breaker is designed for use in classic Westinghouse and Eaton Pow-R-Line panelboards, switchboards, and motor control centers.
Is the FB3090 a direct replacement for older Westinghouse breakers?
Yes, Eaton acquired the Westinghouse distribution equipment line. An Eaton or Cutler-Hammer FB3090 will directly replace an original Westinghouse FB3090 without requiring adapters or modifications to the enclosure.
Can the FB3090 substitute for FDB3090 breakers?
Yes, the FB3090 shares the same physical F-frame dimensions and mounting footprint as the FDB3090. It serves as a reliable drop-in substitute for Pow-R-Line panelboards requiring a 90-amp, 14kAIC at 480VAC rating.
Is the FB3090 suitable for direct current (DC) systems?
Yes, it is rated for up to 250VDC with a 10kA interrupting capacity. When applying it to DC systems, ensure the application meets Eaton guidelines for non-inductive circuits and proper pole wiring.
Can the FB3090 be reverse fed in a panelboard?
It can be reverse fed only if the breaker case does not have LINE and LOAD markings. When backfeeding, the National Electrical Code requires the use of an approved retaining bracket or hold-down kit to secure the breaker to the panel bus.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
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
Search
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.