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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
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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 |
Sold out
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 111 reviews.
Total 5 star reviews: 109 Total 4 star reviews: 2 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Reviews Summary
Generated by AI from 87 most recent customer reviews
Last updated 8/7/25
Customers say these circuit breakers arrive quickly and function as expected. Many reviews mention competitive pricing and reliable shipping. The ordering process receives praise for its simplicity, with users noting the website is easy to navigate. Frequent comments address product availability and proper packaging. While some note receiving older stock items, users consistently report the breakers work effectively.
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Rating
111 reviews
- 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
- DHDave H.Verified BuyerReviewingSquare D EDB34020 - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/6/26Brfeaker
good service and quick ship
- RPRonica P.Verified BuyerReviewingSquare D EDB34015 - 15A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars6/30/26Great Experience from Start to Finish
Great experience! My order arrived on time and everything was exactly as expected. The items were packaged securely, and everything arrived in perfect condition. I appreciate the care taken with packaging and the prompt delivery. I would definitely order from them again!
- TBTheresa B.Verified BuyerReviewingSquare D EDB34015 - 15A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars6/17/26Works as expected
Breaker worked as expected. Price was good and shipping and delivery were expedient. No complaints