Providing 18kAIC at 277V, this 20A E-Frame MCCB delivers thermal-magnetic protection for commercial and industrial electrical systems. The "SA" catalog suffix denotes a factory-installed 120V shunt trip, allowing the breaker to be tripped remotely for safety or control purposes. Designed specifically for bolt-on applications, this single-pole breaker installs into Square D NF panelboards. It features Visi-Trip technology for quick fault identification and is HID and SWD rated.
What does the SA suffix mean on the EDB14020SA circuit breaker?
The SA suffix indicates this breaker includes a factory-installed 120VAC shunt trip. This allows the breaker to be tripped remotely for emergency disconnects or control system integration.
How many panel spaces does the EDB14020SA require?
This breaker requires two pole spaces in your panel. While it is a 1-pole breaker, the factory-installed shunt trip module occupies an additional pole space.
Can I field-install a shunt trip on a standard EDB14020 breaker instead?
No. For Square D E-frame breakers, electrical accessories like shunt trips are factory-installed only and cannot be added in the field. You must order the breaker with the SA suffix if a shunt trip is required.
Which panelboards are compatible with the EDB14020SA?
This bolt-on circuit breaker is designed exclusively for use in commercial Square D NF series panelboards. It will not fit in residential QO or Homeline load centers.
What are the wire size and torque requirements for the EDB14020SA?
The terminal lugs accept 14 AWG to 6 AWG copper wire, or 12 AWG to 6 AWG aluminum wire. For a safe and secure connection, the lugs must be tightened to a torque of 30 lbf-in (3.4 N-m).
Is the EDB14020SA rated for switching commercial lighting circuits?
Yes, this breaker is HID rated, making it suitable for switching high-intensity discharge lighting loads commonly found in commercial 277VAC applications.
How does the Visi-Trip indicator improve safety during maintenance?
The Visi-Trip feature provides a bright red visual indicator when the breaker has tripped due to an overload or short circuit. This allows electricians to quickly and safely identify the faulted circuit in a crowded NF panelboard.
What does the LI trip function code mean for this breaker?
The LI designation means the thermal-magnetic trip unit provides Long-Time (L) protection against overloads and Instantaneous (I) protection against short circuits. Both settings are fixed and non-adjustable.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 111 reviews.
5.0
Rated 5.0 out of 5 stars
Based on 111 reviews
5
Rated out of 5 stars
109
Total 5 star reviews: 109
4
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2
Total 4 star reviews: 2
3
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0
Total 3 star reviews: 0
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Total 2 star reviews: 0
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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.
Square D EDB34125 - 125A 3 Pole Miniature Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
8/4/26
Fast and easy
Locating the product, checking out and delivery were top notch!
JD
John D.
Verified Buyer
Reviewing
Square D EDB14020 - 20A 1 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
7/16/26
Great place
My rep has been very responsive and helpful. He always gives me a good deal also
DH
Dave H.
Verified Buyer
Reviewing
Square D EDB34020 - 20A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
7/6/26
Brfeaker
good service and quick ship
RP
Ronica P.
Verified Buyer
Reviewing
Square D EDB34015 - 15A 3 Pole Miniature Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
6/30/26
Great 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!
TB
Theresa B.
Verified Buyer
Reviewing
Square D EDB34015 - 15A 3 Pole Miniature Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
6/17/26
Works as expected
Breaker worked as expected. Price was good and shipping and delivery were expedient. No complaints