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Square D EHB24090 Molded Case Circuit Breaker
- 90A
- 2 Pole
- Bolt-On
Square D
EHB24090
Molded Case Circuit Breaker
Brand
Square D
SKU
EHB24090
Quantity
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Square D EHB24090 - 90A 2 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D EHB24090 - 90A 2 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | EHB24090 |
| Series | EHB |
| Amperage | 90A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 240VAC, 480Y/277VAC |
| Phase | 1 |
| AIC Rating | 65kA @ 120VAC, 65kA @ 240VAC, 14kA @ 480Y/277VAC |
| Frame Type | EH |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D NEHB Panelboards |
| Wire Gauge | 4 AWG-2/0 AWG (Al/Cu) |
| Max Wire | 2/0 AWG |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Undervoltage Release, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Sold out
Quantity
Square D EHB24090 - 90A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | EHB24090-R |
| Series | EHB |
| Amperage | 90A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 240VAC, 480Y/277VAC |
| Phase | 1 |
| AIC Rating | 65kA @ 120VAC, 65kA @ 240VAC, 14kA @ 480Y/277VAC |
| Frame Type | EH |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D NEHB Panelboards |
| Wire Gauge | 4 AWG-2/0 AWG (Al/Cu) |
| Max Wire | 2/0 AWG |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Undervoltage Release, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
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Description
Built for commercial applications, the EHB24090 is a 2-pole, 90A molded case circuit breaker from Square D. It provides essential thermal-magnetic protection against overloads and short circuits. This E-frame unit mounts into legacy NEHB panelboards using a secure bolt-on connection. While the EHB series is obsolete, modern EDB replacements require an NF panelboard upgrade. Rated 14kAIC at 480Y/277V, it includes a Visi-Trip indicator for quick fault identification and is HACR rated.Specifications
| Brand | Square D |
|---|---|
| Part Number | EHB24090 |
| Series | EHB |
| Amperage | 90A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 240VAC, 480Y/277VAC |
| Phase | 1 |
| AIC Rating | 65kA @ 120VAC, 65kA @ 240VAC, 14kA @ 480Y/277VAC |
| Frame Type | EH |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D NEHB Panelboards |
| Wire Gauge | 4 AWG-2/0 AWG (Al/Cu) |
| Max Wire | 2/0 AWG |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Undervoltage Release, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Product FAQs
6 answersIs the Square D EHB24090 circuit breaker obsolete?
Yes, the EHB series is a legacy product line that has been discontinued by Schneider Electric. It is no longer manufactured, making existing stock the primary source for direct replacements in older NEHB panels.
Which panelboards accept the EHB24090 breaker?
This bolt-on breaker is specifically designed for legacy Square D NEHB lighting and distribution panelboards. It is not compatible with modern NQ, NF, or I-Line panels.
Can I replace an EHB24090 with a newer EDB series breaker?
Not directly. While the EDB series is the modern equivalent, it is designed for Square D NF panelboards and will not fit into a legacy NEHB panelboard. Upgrading to EDB breakers requires replacing the entire panelboard infrastructure.
What wire sizes and materials are compatible with the EHB24090?
The factory lugs accept wire gauges from 4 AWG up to 2/0 AWG. The terminals are dual-rated for use with either aluminum or copper conductors.
Is the EHB24090 suitable for 480V Delta systems?
No. Because it carries a 480Y/277VAC slash rating, it is only approved for solidly grounded wye systems where the line-to-ground voltage does not exceed 277V. It cannot be used on ungrounded or corner-grounded 480V delta systems.
Are the trip settings on the EHB24090 adjustable?
No, this is a fixed thermal-magnetic breaker. Both the long-time overload and instantaneous short-circuit trip functions are factory-set and cannot be adjusted in the field.
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Reviews
Review summary
Customers rate this product 4.8 out of 5 based on 19 reviews.
Total 5 star reviews: 16 Total 4 star reviews: 3 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
19 reviews
- TSThomas S.Verified BuyerReviewingSquare D EHB24060 - 60A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars2/28/26President NGE
The quality is excellent, but you need to double check when you order that the corrected one gets delivered
- MDMitchell D.Verified BuyerReviewingSquare D EHB14020HID - 20A 1 Pole Molded Case Circuit BreakerI recommend this productRated 4 out of 5 stars2/4/26Hard to find
Super breakers has just what I was looking for when no one else did!!
- MSMike S.Verified BuyerReviewingSquare D EHB34060 - 60A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars11/21/25Fast reliable service, reasonable prices
I recently ordered the incorrect breakers for a job, but I contacted Drew at SuperBreakers and he got me the correct breakers shipped out that day, which I received the next day. He sent me a label to send the wrong breakers back, and I was quickly refunded a restocking fee that I incurred for my mistake. I was able to get the breakers installed, and the power running to meet the deadline. Not to mention, the price was better than I found elsewhere. Thanks Drew!
I would definitely recommend this company if you need fast, reliable service for your electrical product needs. And I'm sure I will use them again.
Thank you SuperBreakers! Nice job Drew!
- DTDavid T.ReviewingSquare D EHB14020 - 20A 1 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars12/12/23Everything worked out perfect thanks
Everything worked out perfect thanks again
- GCGULF C.ReviewingSquare D EHB34020 - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/5/23Perfect condition
This breaker arrived as advert and timely. Perfect condition. Good working condition