Eaton / Cutler-HammerFS320090A
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Eaton / Cutler-Hammer FS340090A Molded Case Circuit Breaker
- 90A
- 3 Pole
- Bolt-On
Eaton / Cutler-Hammer
FS340090A
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
FS340090A
Quantity
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Eaton / Cutler-Hammer FS340090A - 90A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Quantity
Eaton / Cutler-Hammer FS340090A - 90A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | FS340090A-R |
| Series | FS |
| Amperage | 90A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 22kA @ 240VAC, 14kA @ 480VAC, 10kA @ 250VDC |
| Frame Type | FS |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Panelboards, Switchboards, Enclosures |
| Wire Gauge | 14-1/0 AWG |
| 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 Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Factory Sealed, Non-Interchangeable Trip, HACR Rated |
Quantity
Eaton / Cutler-Hammer FS340090A - 90A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | FS |
| Amperage | 90A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 22kA @ 240VAC, 14kA @ 480VAC, 10kA @ 250VDC |
| Frame Type | FS |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Panelboards, Switchboards, Enclosures |
| Wire Gauge | 14-1/0 AWG |
| 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 Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Factory Sealed, Non-Interchangeable Trip, HACR Rated |
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Description
Built for commercial environments, the Eaton FS340090A is a 3-pole, 90A molded case circuit breaker. As part of the Series C lineup, it ensures reliable power distribution. This bolt-on MCCB mounts securely into Eaton panelboards and industrial enclosures. It is also an exact replacement for the discontinued FD3090, offering a seamless upgrade path. The factory-sealed breaker features a non-interchangeable trip unit with fixed LI functions, delivering 14kAIC at 480VAC.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | FS340090A-R |
| Series | FS |
| Amperage | 90A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 22kA @ 240VAC, 14kA @ 480VAC, 10kA @ 250VDC |
| Frame Type | FS |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Panelboards, Switchboards, Enclosures |
| Wire Gauge | 14-1/0 AWG |
| 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 Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Factory Sealed, Non-Interchangeable Trip, HACR Rated |
Product FAQs
5 answersCan the FS340090A be installed in older Westinghouse panelboards?
Yes, this breaker is backward compatible with legacy Cutler-Hammer and Westinghouse F-frame hardware, in addition to current Eaton Series C panelboards and switchboards.
What is the recommended torque for the standard slotted head terminals on this F-frame breaker?
For standard Series C F-frame breakers, torque values are 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 3-4/0 AWG. Always verify against the breaker nameplate before terminating.
What type of wire material is compatible with the standard lugs on this breaker?
The standard factory-installed lugs on the FS340090A are dual-rated for use with both copper (Cu) and aluminum (Al) conductors.
Can the FS340090A replace an older FD3090 breaker?
The FS340090A shares the same physical F-frame footprint and mounting as the FD3090, but it has a lower interrupting capacity (14kAIC at 480VAC versus 35kAIC for the FD3090). Verify your system's fault current requirements before substituting.
Are internal accessories supported on the FS340090A?
Yes, Eaton Series C F-frame breakers support field-installable internal accessories such as shunt trips, auxiliary switches, and undervoltage releases. These mount inside the accessory pockets under the front cover.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 1 review.
Total 5 star reviews: 1 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
1 review
- AOAnthony O.ReviewingEaton / Cutler-Hammer FS340020A - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars11/18/21Circuit Breaker Purchase
All circuit breakers were shipped in a timely manner with no mistakes. Thank You!