Square D EGB24050SA Molded Case Circuit Breaker
- 50A
- 2 Pole
- Bolt-On
Quantity
Square D EGB24050SA - 50A 2 Pole Molded Case Circuit Breaker
New
Quantity
Description
Engineered for commercial systems, the Square D EGB24050SA is a 2-pole, 50A molded case circuit breaker from the E-Frame family. It delivers reliable thermal-magnetic protection for demanding environments. This bolt-on breaker installs into Square D NF panelboards. It accepts 14-2/0 AWG copper or 12-2/0 AWG aluminum conductors via standard lug terminals. The EGB24050SA features a factory-installed 120VAC shunt trip for remote operation.Specifications
| Brand | Square D |
|---|---|
| Series | EGB |
| Amperage | 50A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 240VAC, 480Y/277VAC |
| Phase | 1 |
| AIC Rating | 65kA @ 120VAC, 65kA @ 240VAC, 35kA @ 480Y/277VAC |
| Frame Type | EGB |
|---|---|
| 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 Thermal, Fixed Magnetic |
| Available Options | Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Shunt Trip (Factory Installed), Aluminum Lugs Included |
| Standards | CSA C22.2 No. 5, HACR Rated, HID Rated, NEMA AB 1, NOM 117, RoHS, UL 489 |
| Approval | CSA, cULus, HACR, HID, NOM, RoHS, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, HID Rated, Visual Trip Indicator, Common Trip |
Product FAQs
7 answersWhat panelboards are compatible with the Square D EGB24050SA circuit breaker?
The EGB24050SA is an E-Frame bolt-on circuit breaker designed exclusively for use in Square D NF series panelboards.
What does the SA suffix indicate on the EGB24050SA catalog number?
The SA suffix denotes a factory-installed 120V AC shunt trip. This feature allows the breaker to be tripped remotely via external control signals for emergency disconnects, fire alarm integration, or automation systems.
How many panel spaces does the EGB24050SA require?
Although it is a 2-pole breaker, the factory-installed shunt trip requires an additional pole space. The EGB24050SA will take up 3 spaces in a Square D NF panelboard.
What wire sizes are accepted by the lugs on the EGB24050SA?
The load-side lugs accept 14 AWG to 2/0 AWG copper conductors, or 12 AWG to 2/0 AWG aluminum conductors.
Are the trip settings on the EGB24050SA adjustable?
No, this breaker features a fixed thermal-magnetic trip unit. Both the long-time and instantaneous trip functions are factory set and cannot be adjusted in the field.
Can the shunt trip be removed or added to the EGB24050SA in the field?
No, the 120V AC shunt trip is factory-installed and is not field-modifiable. If your application does not require remote tripping capabilities, you must source the standard EGB24050 breaker instead.
What applications typically require the shunt trip feature found on the EGB24050SA?
Shunt trips are commonly used in commercial and industrial safety systems. They allow the breaker to be opened automatically by external sensors or switches, such as fire alarm panels, emergency stop buttons, or emergency power off (EPO) systems.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 25 reviews.
- RSRobert S.Verified BuyerReviewingSquare D EGB34015 - 15A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars4/21/26New breaker
Great product, exactly what I needed and shipped in a timely manner!
- EBEd B.Verified BuyerReviewingSquare D EGB34100 - 100A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars11/5/25100 amp breaker
Prompt ordering and shipping at a fair price. Thanks
- EBEd B.Verified BuyerReviewingSquare D EGB34015 - 15A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars10/11/25Breaker purchase
quick response and shipping
- TITim I.Verified BuyerReviewingSquare D EGB34040 - 40A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/6/25Problem Solved
The breakers showed up packaged very well and in great shape. The pricing was very competitive and solved our problem sourcing older circuit breakers.
- MKMarvin K.Verified BuyerReviewingSquare D EGB34045 - 45A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/4/25Square D EGB34045 3 Pole Circuit Breaker
Breaker and service was great and always has been. Looking forward more business in the future. Thanks.