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Square D EDB34020 Molded Case Circuit Breaker
- 20A
- 3 Pole
- Bolt-On
Square D
EDB34020
Molded Case Circuit Breaker
Brand
Square D
SKU
EDB34020
Quantity
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Square D EDB34020 - 20A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D EDB34020 - 20A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | EDB34020 |
| Series | EDB |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 240VAC, 277VAC, 480Y/277VAC, 120/240VAC |
| Phase | 3 |
| 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 | 14-6 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 |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Aluminum Lugs Included |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, cULus, HACR, HID, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, Visual Trip Indicator |
Quantity
Square D EDB34020 - 20A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | EDB34020-R |
| Series | EDB |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 240VAC, 277VAC, 480Y/277VAC, 120/240VAC |
| Phase | 3 |
| 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 | 14-6 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 |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Aluminum Lugs Included |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, cULus, HACR, HID, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, Visual Trip Indicator |
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Description
Built for demanding commercial environments, this 20A three-pole breaker provides reliable long-time and instantaneous trip functions. The integrated Visi-Trip visual indicator simplifies troubleshooting by clearly marking tripped status. Designed exclusively for Square D NF panelboards, the bolt-on mounting style guarantees a rigid, high-performance connection. With an 18 kAIC rating at 480Y/277V, this E-Frame unit is fully HACR and HID rated to handle high-intensity discharge lighting.Specifications
| Brand | Square D |
|---|---|
| Part Number | EDB34020 |
| Series | EDB |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 240VAC, 277VAC, 480Y/277VAC, 120/240VAC |
| Phase | 3 |
| 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 | 14-6 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 |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Aluminum Lugs Included |
| Standards | CSA C22.2 No. 5, 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
6 answersCan I install the EDB34020 in a Square D NQ or I-Line panelboard?
No, the EDB34020 is an E-Frame circuit breaker engineered strictly for Square D NF series panelboards. It uses a specific bolt-on connection that is physically incompatible with NQ panelboards (which accept QO and QOB breakers) and I-Line distribution panels.
Are there drop-in replacements for the EDB34020 with higher short-circuit ratings?
Yes. If your system requires a higher interrupting capacity, you can upgrade to the EGB34020, which is rated for 35 kAIC at 480Y/277VAC, or the EJB34020, which is rated for 65 kAIC at 480Y/277VAC. Both share the exact same physical E-Frame dimensions and mount identically in NF panelboards.
How much mounting space does the EDB34020 occupy in an NF panel?
This 3-pole E-Frame breaker requires three standard 1-inch spaces on the panelboard bus, taking up a total of 3 inches of vertical space.
What is the recommended tightening torque for the load lugs on the EDB34020?
The factory-installed load lugs require a tightening torque of 30 lbf-in (3.4 N-m). They are rated to accept 14 AWG to 6 AWG copper wire, or 12 AWG to 6 AWG aluminum wire.
Can the EDB34020 be used to control HID lighting and HVAC equipment?
Yes, this breaker is UL listed as both HID (High Intensity Discharge) and HACR (Heating, Air Conditioning, and Refrigeration) rated. It is built to safely handle the high inrush currents typical of commercial lighting and motor loads without nuisance tripping.
Does the EDB34020 have a visual trip indicator?
Yes, this E-Frame breaker includes Square D's Visi-Trip indicator. If the breaker trips due to an overload or short circuit, the handle rests in a center position and a bright red flag appears, allowing electricians to quickly locate the tripped circuit in a fully populated panel.
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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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Rating
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