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Square D EDB34070 Miniature Circuit Breaker
- 70A
- 3 Pole
- Bolt-On
Square D
EDB34070
Miniature Circuit Breaker
Brand
Square D
SKU
EDB34070
Quantity
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Square D EDB34070 - 70A 3 Pole Miniature Circuit Breaker
New
Quantity
Quantity
Square D EDB34070 - 70A 3 Pole Miniature Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | EDB34070 |
| Series | EDB |
| Amperage | 70A |
| 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 | 14-2/0 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 |
| Available Options | Padlock Attachment, Lug Kits |
|---|---|
| Accessories | Aluminum Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, cULus, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Quantity
Square D EDB34070 - 70A 3 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | EDB34070-R |
| Series | EDB |
| Amperage | 70A |
| 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 | 14-2/0 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 |
| Available Options | Padlock Attachment, Lug Kits |
|---|---|
| Accessories | Aluminum Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, cULus, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
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Description
Engineered for robust performance, this 70A, three-pole E-Frame breaker provides essential overcurrent protection for commercial facilities. The bolt-on design ensures a stable connection within Square D NF panelboards. For maintenance and upgrades, this model is the official substitute for the legacy EHB34070, making retrofits straightforward. With a maximum voltage of 480Y/277VAC, it delivers an 18 kAIC interrupting capacity and incorporates a Visi-Trip indicator to streamline troubleshooting.Specifications
| Brand | Square D |
|---|---|
| Part Number | EDB34070 |
| Series | EDB |
| Amperage | 70A |
| 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 | 14-2/0 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 |
| Available Options | Padlock Attachment, Lug Kits |
|---|---|
| Accessories | Aluminum Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, cULus, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Product FAQs
5 answersWhat panelboards are compatible with the EDB34070 circuit breaker?
This bolt-on E-Frame breaker is designed exclusively for use in Square D NF series panelboards. Because it is a three-pole device, it will occupy three standard bus spaces.
Can the EDB34070 be used on an ungrounded 480V delta system?
No. This breaker features a 480Y/277V slash voltage rating. It is only listed for use on solidly grounded wye systems where the line-to-ground voltage does not exceed 277VAC.
How does the EDB34070 differ from EGB34070 and EJB34070 breakers?
All three are 70-amp, three-pole E-Frame breakers that fit the same NF panelboards. They differ only in their short circuit interrupting capacity at 480Y/277V. The EDB is rated for 18kAIC, the EGB for 35kAIC, and the EJB for 65kAIC.
What type of wire is supported by the standard EDB34070 lugs?
The factory lugs accept both copper and aluminum conductors. You can terminate copper wire sized 14 AWG to 2/0 AWG, or aluminum wire sized 12 AWG to 2/0 AWG.
Does the EDB34070 offer adjustable trip settings?
No. This breaker uses a fixed thermal-magnetic trip unit, indicated by the LI (Long-Time and Instantaneous) trip function code. The overload and short circuit pickup points are factory set and cannot be adjusted in the field.
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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