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Square D EDB36090 Molded Case Circuit Breaker
- 90A
- 3 Pole
- Bolt-On
Square D
EDB36090
Molded Case Circuit Breaker
Brand
Square D
SKU
EDB36090
Quantity
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Square D EDB36090 - 90A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial and industrial environments, the Square D EDB36090 is a 3-pole, 90A molded case circuit breaker from the E-Frame family. It provides dependable thermal-magnetic trip protection for robust electrical systems. This bolt-on MCCB mounts into Square D NF panelboards, ensuring a secure connection for demanding applications. Rated for 25kAIC at 240VAC and 14kAIC at 600Y/347VAC, it features a Visi-Trip indicator to quickly identify tripped circuits during maintenance.Specifications
| Brand | Square D |
|---|---|
| Series | EDB |
| Amperage | 90A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 240VAC, 480Y/277VAC, 600Y/347VAC |
| Phase | 3 |
| AIC Rating | 25kA @ 120VAC, 25kA @ 240VAC, 18kA @ 480Y/277VAC, 14kA @ 600Y/347VAC |
| Frame Type | E |
|---|---|
| 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 |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment, Lug Kits |
|---|---|
| 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, Visual Trip Indicator |
Product FAQs
8 answersWhich panelboards are compatible with the EDB36090 circuit breaker?
This E-frame breaker is designed exclusively for use in Square D NF series panelboards. It will not fit in NQ, I-Line, or QO load centers.
What is the difference between the EDB36090 and the EGB36090 or EJB36090?
The difference lies in the interrupting capacity (AIC rating). The EDB is the standard interrupting tier, while the EGB and EJB offer higher short-circuit current ratings for systems requiring greater fault protection. They share the same physical footprint and fit the same NF panelboards.
What does the 600Y/347VAC voltage rating indicate for this breaker?
The slash voltage rating means this breaker is intended for use on solidly grounded wye electrical systems up to 600V. It is not suitable for ungrounded, corner-grounded, or delta systems operating at 600V.
What wire sizes are accepted by the terminals on the EDB36090?
The factory-installed lugs accept 14 AWG to 2/0 AWG copper wire, or 12 AWG to 2/0 AWG aluminum wire. Ensure proper torque specifications are followed during installation as listed on the breaker label.
How does this breaker connect to the panelboard bus?
The EDB36090 features a bolt-on connection. It secures directly to the bus bars of an NF panelboard using mounting screws, providing a robust and reliable electrical connection suitable for commercial and industrial environments.
Does this 90A breaker include ground fault or arc fault protection?
No. This is a standard thermal-magnetic circuit breaker providing long-time overload and instantaneous short-circuit protection. It does not include GFCI or AFCI circuitry.
Can I use this 3-pole breaker on a single-phase system?
While physically possible to wire only two poles, this breaker is specifically designed and rated for 3-phase systems. For single-phase applications in an NF panelboard, a 1-pole or 2-pole EDB breaker is typically recommended.
Is the trip unit on the EDB36090 adjustable?
No, the thermal-magnetic trip unit is fixed. Both the long-time overload and instantaneous short-circuit trip thresholds are factory set and cannot be modified in the field.
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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