Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Eaton / Cutler-Hammer FDB2040 Molded Case Circuit Breaker
- 40A
- 2 Pole
- Bolt-On
Eaton / Cutler-Hammer
FDB2040
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
FDB2040
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Eaton / Cutler-Hammer FDB2040 - 40A 2 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Eaton / Cutler-Hammer FDB2040 - 40A 2 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | FDB2040 |
| Series | FDB |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 18kA @ 240VAC, 14kA @ 480VAC, 14kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | FD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Panelboards, Switchboards |
| Wire Gauge | 14 AWG - 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, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, HID Rated, Non-Interchangeable Trip |
Sold out
Quantity
Eaton / Cutler-Hammer FDB2040 - 40A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | FDB2040-R |
| Series | FDB |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 18kA @ 240VAC, 14kA @ 480VAC, 14kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | FD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Panelboards, Switchboards |
| Wire Gauge | 14 AWG - 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, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, HID Rated, Non-Interchangeable Trip |
Similar Items
35A 2 Pole Molded Case Circuit Breaker
30A 2 Pole Molded Case Circuit Breaker
60A 2 Pole Molded Case Circuit Breaker
Description
Built for robust commercial environments, this 40-amp F-frame breaker delivers dependable long-time and instantaneous trip functions. The bolt-on unit mounts securely into Eaton Series C panelboards and switchboards without requiring specialized adapters. Featuring a 14kAIC rating at 480V and reverse feed capabilities, it accommodates versatile wiring setups. For modern upgrades, Eaton designates the Power Defense PDG22F0040TFFJ as the official substitute for this specific hardware.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | FDB2040 |
| Series | FDB |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 18kA @ 240VAC, 14kA @ 480VAC, 14kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | FD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Panelboards, Switchboards |
| Wire Gauge | 14 AWG - 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, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, HID Rated, Non-Interchangeable Trip |
Product FAQs
6 answersWhich panelboards are compatible with the FDB2040 circuit breaker?
This F-frame breaker is designed for use in Eaton Series C panelboards and switchboards. It is a bolt-on breaker and will not fit in standard residential plug-on load centers.
Can I use the Eaton FDB2040 to replace an older Westinghouse FDB2040 breaker?
Yes. Eaton acquired the Westinghouse distribution and control business and continues to manufacture the Series C line. The Eaton FDB2040 is the direct, backward-compatible replacement for legacy Westinghouse and Cutler-Hammer breakers with the exact same catalog number.
Is the FDB2040 rated for direct current applications?
Yes, this breaker is rated for up to 250VDC with a 10kAIC interrupting rating. When used in DC systems, multiple poles may need to be wired in series depending on the specific voltage and grounding configuration.
What wire sizes do the standard lugs on the FDB2040 accept?
The standard factory lugs accept copper or aluminum wire ranging from 14 AWG up to 1/0 AWG. Ensure you are using the correct wire gauge for your 40A circuit requirements.
What is the recommended torque for the lug terminals on this 40A F-frame breaker?
For standard slotted head terminals, the required torque depends on the wire size. For 14 to 10 AWG wire, torque to 35 lb-in. For 8 AWG, torque to 40 lb-in. For 6 to 4 AWG, torque to 45 lb-in. For 3 to 1/0 AWG, torque to 50 lb-in. Always verify the exact torque specifications printed on the breaker nameplate before finalizing the installation.
Does the FDB2040 have an adjustable trip unit?
No. This breaker features a thermal-magnetic trip unit with fixed thermal and fixed magnetic settings for both long-time and instantaneous protection.
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.
Search
Rating
2 reviews
- BBrentVerified BuyerReviewingEaton / Cutler-Hammer FDB3060 - 60A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/18/26Breaker was as expected.
Breaker was clean, you could not tell it was used.
- RFRussell F.Verified BuyerReviewingEaton / Cutler-Hammer FDB3025 - 25A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars2/24/26Right product, right time
This is what I needed, and I got it in time.