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Eaton / Cutler-Hammer EDB3125 Molded Case Circuit Breaker
- 125A
- 3 Pole
- Bolt-On
Eaton / Cutler-Hammer
EDB3125
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
EDB3125
Quantity
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Eaton / Cutler-Hammer EDB3125 - 125A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Eaton / Cutler-Hammer EDB3125 - 125A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | EDB |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 125VDC |
| Phase | 3 |
| AIC Rating | 22kA @ 240VAC, 10kA @ 125VDC |
| Frame Type | F |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Pow-R-Line Panelboards, Series C F-Frame Enclosures |
| Wire Gauge | 4 AWG - 4/0 AWG (Cu/Al) |
| Max Wire | 4/0 AWG |
| Min Wire | 4 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, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip |
Quantity
Eaton / Cutler-Hammer EDB3125 - 125A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | EDB |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 125VDC |
| Phase | 3 |
| AIC Rating | 22kA @ 240VAC, 10kA @ 125VDC |
| Frame Type | F |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Pow-R-Line Panelboards, Series C F-Frame Enclosures |
| Wire Gauge | 4 AWG - 4/0 AWG (Cu/Al) |
| Max Wire | 4/0 AWG |
| Min Wire | 4 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, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip |
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125A 3 Pole Molded Case Circuit Breaker
Description
Built for commercial and industrial distribution, the Eaton EDB3125 3-pole, 125A molded case circuit breaker delivers dependable thermal-magnetic protection within the Series C F-Frame family. This bolt-on MCCB mounts into Eaton Pow-R-Line panelboards and compatible F-Frame enclosures, accepting 4 AWG to 4/0 AWG wire. Rated for 22 kAIC at 240VAC, it safely handles demanding fault currents. The unit is HACR rated, current limiting, and supports reverse feed applications.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | EDB |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 125VDC |
| Phase | 3 |
| AIC Rating | 22kA @ 240VAC, 10kA @ 125VDC |
| Frame Type | F |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Pow-R-Line Panelboards, Series C F-Frame Enclosures |
| Wire Gauge | 4 AWG - 4/0 AWG (Cu/Al) |
| Max Wire | 4/0 AWG |
| Min Wire | 4 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, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
7 answersWhich panelboards are compatible with the EDB3125 circuit breaker?
The EDB3125 is designed for use in Eaton Pow-R-Line panelboards, specifically the PRL3A and PRL4 models, as well as compatible Series C F-Frame enclosures.
What wire sizes are accepted by the standard lugs on the EDB3125?
When wiring the EDB3125, the factory-installed load lugs accept 4 AWG to 4/0 AWG copper or aluminum (Cu/Al) conductors. Ensure proper torque specifications are followed during installation.
Can the EDB3125 be used in direct current (DC) applications?
Yes, this breaker is certified for use in DC systems up to 125VDC. When applying this breaker in DC circuits, ensure the system fault current does not exceed its 10kA DC interrupting capacity.
Are the trip settings on the EDB3125 adjustable?
No, it features a non-interchangeable, fixed thermal-magnetic trip unit. Both the long-time (thermal) overload and instantaneous (magnetic) short-circuit trip points are factory set and cannot be adjusted in the field.
Can I use the Eaton EDB3125 to replace an older Cutler-Hammer breaker?
Yes. Eaton acquired Cutler-Hammer, and the current EDB3125 is a direct drop-in replacement for legacy Cutler-Hammer and Westinghouse breakers that share the same EDB3125 catalog number.
Is the EDB3125 suitable for reverse feed applications?
Yes, standard Eaton Series C F-Frame breakers like the EDB3125 can be reverse fed. This allows power to be supplied to the load terminals when required by specific panel or enclosure designs.
Is this breaker HACR rated for HVAC equipment?
Yes, the EDB3125 carries an HACR rating, meaning it is certified for safe use with heating, air conditioning, and refrigeration equipment.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 114 reviews.
Reviews Summary
Generated by AI from 100 most recent customer reviews
Last updated 10/21/26
Customers say these breakers perform as expected and arrive quickly. Fast shipping and competitive pricing are frequently mentioned, with many noting significant savings compared to local suppliers. Customers appreciate the easy-to-use website, responsive sales representatives, and reliable delivery. Products consistently arrive in good condition and well-packaged. Common feedback highlights dependable service, wide product availability, and seamless ordering processes. Customers report using this supplier repeatedly for their breaker needs.
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Rating
114 reviews
- BBenVerified BuyerReviewingSquare D EDB34020 - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars10/20/26Breaker ordered and delivered.
Called in as a last attempt because my regular supplier didn't have any of these in stock. I got a very friendly salesperson, and they sold me a new breaker for less than half of what my standard supplier would have. Definitely going here again.
- AMAlex M.Verified BuyerReviewingSquare D EDB34070 - 70A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars10/19/26Another Perfect Order
SuperBreakers is an amazing resource for the company I work for. Their prices are very competitive to local suppliers and lower prices than we can get in our work area.
Thank you SuperBreakers!
- JLJeffery L.Verified BuyerReviewingSquare D EDB34125 - 125A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars10/16/26Square D Breakers
Good company & prices reasonable.
- COChris O.Verified BuyerReviewingSquare D EDB34125 - 125A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/4/26Fast and easy
Locating the product, checking out and delivery were top notch!
- JDJohn D.Verified BuyerReviewingSquare D EDB14020 - 20A 1 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/16/26Great place
My rep has been very responsive and helpful. He always gives me a good deal also