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Square D EDB34030 Molded Case Circuit Breaker
- 30A
- 3 Pole
- Bolt-On
Square D
EDB34030
Molded Case Circuit Breaker
Brand
Square D
SKU
EDB34030
Quantity
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Square D EDB34030 - 30A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D EDB34030 - 30A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | EDB34030 |
| Series | EDB |
| Amperage | 30A |
| 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 Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side 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 EDB34030 - 30A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | EDB34030-R |
| Series | EDB |
| Amperage | 30A |
| 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 Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side 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 commercial environments, the Square D EDB34030 is a 3-pole, 30A molded case circuit breaker. It features a rugged E-Frame design for dependable thermal-magnetic protection. This bolt-on unit mounts into Square D NF panelboards. It also serves as a direct replacement for legacy EHB34030 breakers, ensuring seamless integration in existing infrastructure. Rated 18 kAIC at 480Y/277V, it includes Visi-Trip technology for quick identification of tripped circuits and is HACR and HID rated.Specifications
| Brand | Square D |
|---|---|
| Part Number | EDB34030 |
| Series | EDB |
| Amperage | 30A |
| 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 Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side 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
9 answersWhich panelboards accept the EDB34030 circuit breaker?
The EDB34030 is an E-frame, bolt-on circuit breaker designed specifically for Square D NF series panelboards. It will not fit NQ panelboards (which require QO or QOB breakers) or I-Line panelboards.
What is the difference between the EDB34030, EGB34030, and EJB34030?
These breakers share the same physical dimensions and fit the same NF panelboards, but they have different short-circuit interrupting ratings. At 480Y/277VAC, the EDB provides 18kAIC, the EGB provides 35kAIC, and the EJB provides 65kAIC.
Can the EDB34030 be reverse-fed for backfeed applications?
Yes. Standard EDB circuit breakers do not have marked line and load terminals. This means they are suitable to be reverse-fed, making them capable of functioning as a backfed main breaker in an NF panelboard.
What is the correct wire lug torque for the EDB34030?
The factory-installed aluminum lugs accept 14-6 AWG copper or 12-6 AWG aluminum conductors and must be tightened to approximately 30 lb-in (3.4 N.m).
What is the required torque for the bolt-on panelboard connection?
When mounting the breaker to the NF panelboard branch connector, the mounting screw should be torqued to between 20 and 30 lb-in to ensure a secure and code-compliant connection.
What does the Y in the 480Y/277VAC rating mean?
The Y indicates that this breaker is listed for use on solidly grounded wye electrical systems, where the line-to-neutral voltage is 277V and the line-to-line voltage is 480V. It is not rated for 480V ungrounded or corner-grounded delta systems.
Does the EDB34030 have a tripped circuit indicator?
Yes, it features a visual trip indicator. When the breaker trips due to an overload or short circuit, the toggle handle snaps to a center position, allowing you to easily identify the faulted circuit in a loaded panel.
Is the EDB34030 suitable for HVAC and lighting applications?
Yes, this E-frame breaker is UL listed as HACR rated for heating, air conditioning, and refrigeration equipment, as well as HID rated for high-intensity discharge lighting circuits.
How much panel space is required to install this breaker?
As a 3-pole breaker, the EDB34030 requires three adjacent pole spaces in a Square D NF panelboard.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 114 reviews.
Reviews Summary
Generated by AI from 100 most recent customer reviews
Last updated 10/21/26
Customers say these breakers perform as expected and arrive quickly. Fast shipping and competitive pricing are frequently mentioned, with many noting significant savings compared to local suppliers. Customers appreciate the easy-to-use website, responsive sales representatives, and reliable delivery. Products consistently arrive in good condition and well-packaged. Common feedback highlights dependable service, wide product availability, and seamless ordering processes. Customers report using this supplier repeatedly for their breaker needs.
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Rating
114 reviews
- BBenVerified BuyerReviewingSquare D EDB34020 - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars10/20/26Breaker ordered and delivered.
Called in as a last attempt because my regular supplier didn't have any of these in stock. I got a very friendly salesperson, and they sold me a new breaker for less than half of what my standard supplier would have. Definitely going here again.
- AMAlex M.Verified BuyerReviewingSquare D EDB34070 - 70A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars10/19/26Another Perfect Order
SuperBreakers is an amazing resource for the company I work for. Their prices are very competitive to local suppliers and lower prices than we can get in our work area.
Thank you SuperBreakers!
- JLJeffery L.Verified BuyerReviewingSquare D EDB34125 - 125A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars10/16/26Square D Breakers
Good company & prices reasonable.
- 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