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Square D EDB34125SA Miniature Circuit Breaker
- 125A
- 3 Pole
- Bolt-On
Square D
EDB34125SA
Miniature Circuit Breaker
Brand
Square D
SKU
EDB34125SA
Quantity
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Square D EDB34125SA - 125A 3 Pole Miniature Circuit Breaker
New
Quantity
Quantity
Square D EDB34125SA - 125A 3 Pole Miniature Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | EDB34125SA |
| Series | EDB |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 240VAC, 277VAC, 480Y/277VAC, 120/240VAC |
| Phase | 3 |
| AIC Rating | 25kA @ 120VAC, 25kA @ 240VAC, 18kA @ 277VAC, 18kA @ 480Y/277VAC, 25kA @ 120/240VAC |
| Frame Type | EDB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D NF Panelboards |
| Wire Gauge | 14 AWG-2/0 AWG (Cu), 12 AWG-2/0 AWG (Al) |
| Max Wire | 2/0 AWG |
| Min Wire | 14 AWG (Cu), 12 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Alarm Switch, Auxiliary Switch, Padlock Attachment |
|---|---|
| Accessories | Shunt Trip 120VAC |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, cULus, HACR, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
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Quantity
Square D EDB34125SA - 125A 3 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Series | EDB |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 240VAC, 277VAC, 480Y/277VAC, 120/240VAC |
| Phase | 3 |
| AIC Rating | 25kA @ 120VAC, 25kA @ 240VAC, 18kA @ 277VAC, 18kA @ 480Y/277VAC, 25kA @ 120/240VAC |
| Frame Type | EDB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D NF Panelboards |
| Wire Gauge | 14 AWG-2/0 AWG (Cu), 12 AWG-2/0 AWG (Al) |
| Max Wire | 2/0 AWG |
| Min Wire | 14 AWG (Cu), 12 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Alarm Switch, Auxiliary Switch, Padlock Attachment |
|---|---|
| Accessories | Shunt Trip 120VAC |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, cULus, HACR, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
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Description
Built to accommodate remote shutdown requirements, this 125A, three-pole device integrates a 120VAC shunt trip mechanism for advanced control in commercial facilities. The unit fastens securely into Square D NF series panelboards, providing a reliable bolt-on connection for 480Y/277V distribution systems. It serves as a functional equivalent to EGB34125SA and EJB34125SA variants. Rated for 25kAIC at 240V, it includes the signature Visi-Trip visual indicator to help spot tripped circuits.Specifications
| Brand | Square D |
|---|---|
| Part Number | EDB34125SA |
| Series | EDB |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 240VAC, 277VAC, 480Y/277VAC, 120/240VAC |
| Phase | 3 |
| AIC Rating | 25kA @ 120VAC, 25kA @ 240VAC, 18kA @ 277VAC, 18kA @ 480Y/277VAC, 25kA @ 120/240VAC |
| Frame Type | EDB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D NF Panelboards |
| Wire Gauge | 14 AWG-2/0 AWG (Cu), 12 AWG-2/0 AWG (Al) |
| Max Wire | 2/0 AWG |
| Min Wire | 14 AWG (Cu), 12 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Alarm Switch, Auxiliary Switch, Padlock Attachment |
|---|---|
| Accessories | Shunt Trip 120VAC |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, cULus, HACR, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Product FAQs
6 answersWhat does the SA suffix mean on the EDB34125SA, and how does it affect installation?
The SA suffix indicates that this breaker includes a factory-installed 120VAC shunt trip for remote tripping capabilities. Because of this accessory, the breaker requires four total pole spaces in the panelboard instead of the standard three.
Which panelboards are compatible with the EDB34125SA circuit breaker?
This bolt-on E-Frame breaker is designed exclusively for use in Square D NF series panelboards. It is not compatible with NQ or I-Line panelboards.
Are there direct replacements for the EDB34125SA if my system requires a higher interrupting rating?
Yes. If your system requires a higher fault current rating than 18kA at 480Y/277V, you can upgrade to the EGB34125SA (rated 35kA) or the EJB34125SA (rated 65kA). Both share the same physical dimensions and bolt-on mounting for NF panelboards.
Can the EDB34125SA be used on a 480V Delta system?
No. This breaker has a slash voltage rating of 480Y/277V, meaning it is only approved for solidly grounded wye systems. It is not rated for ungrounded or corner-grounded 480V Delta systems.
Can I use an older F-Frame breaker instead of the EDB34125SA in my NF panelboard?
No. Square D NF panelboards are designed specifically for E-Frame breakers like the EDB, EGB, and EJB series. Older F-Frame breakers will not fit the bus configuration.
Does the EDB34125SA feature a tripped circuit indicator?
Yes. Like most Square D miniature circuit breakers, it includes the Visi-Trip visual indicator. When the breaker trips, a highly visible red flag appears in the indicator window, allowing electricians to quickly identify the faulted circuit in a crowded panel.
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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