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Square D EGB34020SA Miniature Circuit Breaker
- 20A
- 3 Pole
- Bolt-On
Square D
EGB34020SA
Miniature Circuit Breaker
Brand
Square D
SKU
EGB34020SA
Quantity
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Square D EGB34020SA - 20A 3 Pole Miniature Circuit Breaker
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Description
The EGB34020SA is part of Square D's E-Frame series, built specifically for commercial and industrial NF panelboards. This 3-pole, 20-amp bolt-on miniature circuit breaker includes a factory-installed 120V shunt trip (SA suffix), allowing for remote tripping via external control signals. Rated at 35 kAIC at 480Y/277VAC, it utilizes thermal-magnetic trip technology to provide reliable overload and short-circuit protection. It features Visi-Trip indication and is HACR and HID rated.Specifications
| Brand | Square D |
|---|---|
| Part Number | EGB34020SA |
| Series | EGB |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 240VAC, 480Y/277VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 120VAC, 65kA @ 240VAC, 35kA @ 480Y/277VAC |
| Frame Type | EGB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D NF Panelboards |
| Wire Gauge | 14-6 AWG (Cu), 12-6 AWG (Al) |
| Max Wire | 6 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), Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, NEMA AB 1, NFPA 70, UL 489 |
| Approval | CSA, cULus, HACR, HID, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, Visual Trip Indicator |
Product FAQs
9 answersWhat does the "SA" suffix mean on the EGB34020SA?
The "SA" suffix indicates that this breaker includes a factory-installed 120VAC shunt trip. This allows the breaker to be tripped remotely for emergency disconnects, fire alarm integration, or control systems.
Which panelboards are compatible with the EGB34020SA?
This E-frame breaker is designed exclusively for use in Square D NF series panelboards. It features a bolt-on connection that mounts directly to the NF panel bus.
Can I field-install a shunt trip on a standard EGB34020 breaker instead of buying the EGB34020SA?
No. Square D E-frame electrical accessories, including the shunt trip, are factory-installed only. You must purchase the breaker with the "SA" suffix if your application requires a shunt trip.
How much panel space does the EGB34020SA require?
While a standard 3-pole E-frame breaker occupies three pole spaces, the factory-installed shunt trip requires an additional pole space. Therefore, the EGB34020SA will take up four pole spaces in your NF panelboard.
Can the EGB34020SA be used on a 480V Delta system?
No. This breaker is slash-rated for 480Y/277VAC, meaning it is approved for solid-grounded wye systems only. It is not rated for use on ungrounded or corner-grounded 480V Delta systems.
What is the difference between the EDB34020SA and the EGB34020SA?
Both are 20A, 3-pole E-frame breakers with a 120VAC shunt trip for NF panelboards. The difference is the interrupting rating. The EDB series is standard-rated at 18kA at 480Y/277V, while the EGB series is high-interrupting, rated at 35kA at 480Y/277V.
Can I use the EGB34020SA for high-intensity discharge (HID) lighting?
Yes. This 20A E-frame breaker is UL Listed as HID (High-Intensity Discharge) rated, making it suitable for switching HID lighting loads. It is also HACR rated for heating, air conditioning, and refrigeration equipment.
Does the EGB34020SA have a Visi-Trip indicator?
Yes. Like all Square D E-frame breakers, it features a Visi-Trip indicator. When the breaker trips due to an overcurrent or short circuit, the handle snaps to a midpoint position and a highly visible red indicator appears, making it easy to identify the tripped breaker in a crowded panel.
What are the magnetic hold and trip currents for this 20A breaker?
The instantaneous magnetic trip on the EGB34020SA has a hold current of 270A, which is the maximum current it will carry without tripping. The trip current is 875A, which is the current at which it is guaranteed to trip instantaneously.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 25 reviews.
Total 5 star reviews: 23 Total 4 star reviews: 2 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
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.