Square D EDB24050SA Molded Case Circuit Breaker
- 50A
- 2 Pole
- Bolt-On
Square D
EDB24050SA
Molded Case Circuit Breaker
Brand
Square D
SKU
EDB24050SA
Quantity
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Square D EDB24050SA - 50A 2 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial and industrial applications, the Square D EDB24050SA is a 2-pole, 50A molded case circuit breaker from the E-Frame family. It mounts into Square D NF panelboards and features a secure bolt-on connection for reliable power distribution. Rated for 18 kAIC at 480Y/277V, this thermal-magnetic breaker comes equipped with a factory-installed 120VAC shunt trip, allowing for remote tripping capabilities in emergency or automated control systems.Specifications
| Brand | Square D |
|---|---|
| Series | EDB |
| Amperage | 50A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 240VAC, 277VAC, 480Y/277VAC, 120/240VAC |
| Phase | 1 |
| 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 | 14-2/0 AWG (Cu), 12-2/0 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 | Padlock Attachment, Lug Kits |
|---|---|
| Accessories | Shunt Trip 120VAC |
| 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 does the SA suffix mean in the EDB24050SA catalog number?
The SA suffix indicates that this breaker includes a factory-installed 120VAC (110-130 VAC) shunt trip. This allows the breaker to be tripped remotely via an external control signal for emergency disconnects or automation systems.
Can I add a shunt trip to a standard EDB24050 breaker in the field?
No, shunt trips for Square D E-Frame breakers are not field-installable. You must order a breaker with a factory-installed shunt trip, such as the EDB24050SA.
How many panel spaces does the EDB24050SA require?
Although it is a 2-pole breaker, the EDB24050SA requires three pole spaces in your panelboard. The factory-installed shunt trip module occupies one additional space.
Which panelboards are compatible with the EDB24050SA circuit breaker?
This E-Frame breaker is designed exclusively for use in Square D NF series lighting panelboards. It features a bolt-on mounting design to secure it directly to the panel bus.
What wire sizes and materials are accepted by the lugs on this breaker?
The factory-installed lugs accept 14 AWG to 2/0 AWG copper wire, or 12 AWG to 2/0 AWG aluminum wire. Ensure proper torque is applied during installation as specified on the breaker label.
What type of trip unit does the EDB24050SA use?
It features a fixed thermal-magnetic trip unit that provides both long-time (thermal) protection against overloads and instantaneous (magnetic) protection against short circuits.
Is the EDB24050SA rated for use in 480V delta systems?
No. Because it carries a slash voltage rating of 480Y/277VAC, it is only approved for use in solidly grounded wye systems where the voltage to ground does not exceed 277V. It cannot be used on 480V ungrounded or corner-grounded delta systems.
Does this breaker feature a visual trip indicator?
Yes, Square D E-Frame breakers feature a Visi-Trip indicator. When the breaker trips due to a fault or the shunt trip being activated, the handle moves to a center position and a highly visible red indicator appears to help quickly locate the tripped breaker.
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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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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