Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Square D EDB36125 Miniature Circuit Breaker
- 125A
- 3 Pole
- Bolt-On
Square D
EDB36125
Miniature Circuit Breaker
Brand
Square D
SKU
EDB36125
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Square D EDB36125 - 125A 3 Pole Miniature Circuit Breaker
New
Quantity
Similar Items
110A 3 Pole Miniature Circuit Breaker
100A 3 Pole Miniature Circuit Breaker
100A 3 Pole Miniature Circuit Breaker
Description
Built for high-capacity branch circuits, the EDB36125 is a 125A, 3-pole circuit breaker from Square D. It utilizes proven thermal-magnetic trip technology to deliver reliable long-time and instantaneous protection for industrial environments. This device mounts securely into Square D NF panelboards using a standard bolt-on connection. Capable of interrupting 25 kAIC at 240VAC, this breaker is both HACR and HID rated. The integrated Visi-Trip mechanism provides immediate visual confirmation.Specifications
| Brand | Square D |
|---|---|
| Series | EDB |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 240VAC, 480Y/277VAC, 600Y/347VAC |
| Phase | 3 |
| AIC Rating | 25kA @ 120VAC, 25kA @ 240VAC, 18kA @ 480Y/277VAC, 14kA @ 600Y/347VAC |
| Frame Type | E |
|---|---|
| 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 | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment, Undervoltage Release |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, HID, NEMA AB 1, UL 489 |
| Approval | CSA, cULus, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, Visual Trip Indicator, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
7 answersWhat panelboards are compatible with the EDB36125 circuit breaker?
This E-frame breaker is designed exclusively for use in Square D NF series panelboards. It is not compatible with NQ, I-Line, or residential load centers.
Can I install this E-frame breaker in an I-Line panelboard?
No, E-frame breakers like the EDB36125 feature a bolt-on connection specifically for NF panelboards. I-Line panelboards require breakers with I-Line brackets, such as PowerPact H-frame or J-frame models.
How many panel spaces does the EDB36125 require?
As a 3-pole breaker, it occupies three standard spaces in a Square D NF panelboard.
What is the difference between Square D EDB, EGB, and EJB circuit breakers?
All three are E-frame breakers designed for NF panelboards. The difference lies in their interrupting ratings. EDB is the standard rating, while EGB and EJB offer higher interrupting capacities for systems with greater available fault current.
Is the EDB36125 suitable for reverse-fed applications?
Yes, standard Square D E-frame breakers like the EDB36125 are suitable for reverse feeding. This allows them to be used in back-fed main or generator configurations.
What does the LI trip function code indicate on the EDB36125?
The LI designation means the thermal-magnetic trip unit provides Long-Time (L) overload protection and Instantaneous (I) short-circuit protection. Both the thermal and magnetic trip settings on this specific breaker are fixed and cannot be adjusted in the field.
Does the EDB36125 provide ground fault or arc fault protection?
No, this is a standard thermal-magnetic circuit breaker. It provides overload and short-circuit protection but does not include integrated GFCI, EPD, or AFCI features.
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 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.
Search
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