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Square D EDB34090 Molded Case Circuit Breaker
- 90A
- 3 Pole
- Bolt-On
Square D
EDB34090
Molded Case Circuit Breaker
Brand
Square D
SKU
EDB34090
Quantity
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Square D EDB34090 - 90A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D EDB34090 - 90A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | EDB34090 |
| Series | EDB |
| Amperage | 90A |
| 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 AWG-2/0 AWG (Cu), 12 AWG-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 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, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Quantity
Square D EDB34090 - 90A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | EDB34090-R |
| Series | EDB |
| Amperage | 90A |
| 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 AWG-2/0 AWG (Cu), 12 AWG-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 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, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
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Description
Built for commercial power distribution, this 3-pole, 90A molded case circuit breaker provides dependable long-time and instantaneous protection. Designed specifically for Square D NF panelboards, the bolt-on unit ensures a solid connection. It also serves as an exact drop-in replacement for the discontinued EHB34090. Featuring an 18 kAIC rating at 480Y/277VAC, it handles standard fault levels. It includes the Visi-Trip visual indicator and is HACR rated for HVAC equipment.Specifications
| Brand | Square D |
|---|---|
| Part Number | EDB34090 |
| Series | EDB |
| Amperage | 90A |
| 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 AWG-2/0 AWG (Cu), 12 AWG-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 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, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Product FAQs
6 answersWhat panelboards are compatible with the EDB34090?
This E-Frame breaker is designed exclusively for Square D NF series panelboards. It features a bolt-on connection that mounts directly to the panel bus and cannot be used in QO, NQ, or I-Line panelboards.
What is the recommended terminal torque for the EDB34090?
The manufacturer specifies a tightening torque of 34.5 lb-in for 14-10 AWG wire and 49.6 lb-in for 8-2/0 AWG wire.
What is the difference between Square D EDB, EGB, and EJB circuit breakers?
These models share the same physical dimensions and panel compatibility, but they offer different maximum interrupting capacities. At 480Y/277VAC, the EDB is rated for 18kA, the EGB handles 35kA, and the EJB provides 65kA of fault protection.
Is the EDB34090 rated for use with HVAC equipment?
Yes, this breaker is HACR rated, certifying it for safe use with commercial heating, air conditioning, and refrigeration motor loads.
What are the instantaneous trip and hold currents for this 90A breaker?
The fixed magnetic trip unit in the EDB34090 has a hold current of 1000A and an instantaneous trip current of 2300A.
Can the EDB34090 be used in 100 percent continuous duty applications?
No, standard EDB circuit breakers are 80 percent rated. Continuous loads that run for three hours or more should not exceed 72 amps, which is 80 percent of the breaker rating.
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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