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Square D EDB26050 Miniature Circuit Breaker
- 50A
- 2 Pole
- Bolt-On
Square D
EDB26050
Miniature Circuit Breaker
Brand
Square D
SKU
EDB26050
Quantity
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Square D EDB26050 - 50A 2 Pole Miniature Circuit Breaker
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Description
Part of the E-Frame lineup, the Square D EDB26050 offers proven thermal-magnetic protection. This 50A, two-pole breaker is rated for systems up to 600Y/347VAC. Designed for seamless integration, the unit bolts into Square D NF panelboards to ensure a robust fit. It includes load side lugs ready to accept copper or aluminum wire. The breaker provides a 14 kAIC rating at 600Y/347VAC to safeguard equipment. It features a Visi-Trip indicator for fast diagnostics and is HACR and HID rated.Specifications
| Brand | Square D |
|---|---|
| Series | EDB |
| Amperage | 50A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 240VAC, 277VAC, 480Y/277VAC, 600Y/347VAC, 120/240VAC |
| Phase | 1 |
| AIC Rating | 25kA @ 120VAC, 25kA @ 240VAC, 18kA @ 277VAC, 18kA @ 480Y/277VAC, 14kA @ 600Y/347VAC, 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 Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, cULus, HACR, HID, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, Visual Trip Indicator |
Product FAQs
8 answersWhat panelboards are compatible with the EDB26050?
The EDB26050 is designed exclusively for use in Square D NF series panelboards. It will not fit in NQ, QO, or I-Line panels.
What is the difference between Square D EDB, EGB, and EJB circuit breakers?
The primary difference is their interrupting capacity. EDB breakers are standard-rated, EGB breakers offer a higher interrupting rating, and EJB breakers provide the highest interrupting rating in the E-Frame family. They share the same physical dimensions and mount in the same NF panelboards.
What is the recommended lug torque for the EDB26050?
The tightening torque depends on the wire size used. For 14 to 10 AWG wire, torque the lugs to 34.5 lbf-in (3.9 N.m). For 8 to 2/0 AWG wire, torque the lugs to 49.5 lbf-in (5.6 N.m).
Is the EDB26050 suitable for HACR applications?
Yes, this breaker is HACR rated, making it suitable for use with heating, air conditioning, and refrigeration equipment.
Can the EDB26050 be reverse fed?
Yes, this E-Frame breaker does not have line and load markings and is suitable for reverse-feed applications.
How many panel spaces does the EDB26050 require?
As a 2-pole breaker, it occupies two spaces in a Square D NF panelboard.
Does the EDB26050 provide ground fault or equipment protection?
No, this is a standard thermal-magnetic breaker providing overload and short-circuit protection. It does not include GFCI or Equipment Protection Device (EPD) features. Breakers with EPD protection will have an EPD suffix in the catalog number.
Can this breaker be used on a 120/240V or 240V system?
Yes, while commonly used in 480Y/277V or 600Y/347V systems, it is fully rated for 120/240V and 240V applications, where it provides a 25 kA interrupting rating.
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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