EJB24090 - 90 Amp Circuit Breaker
- 90 Amp
- 65k @ 480VAC; 100k @ 240VAC
- 2 Pole
Purchase Options:
EJB24090 - 90 Amp Circuit Breaker Description
EJB24090 - 90 Amp Circuit Breaker
When you need dependable circuit protection for a compatible Square D NF panelboard, the Square D EJB24090 is a solid choice. This 90 Amp, 2-pole E-Frame circuit breaker is built for 480Y/277V AC electrical systems and provides thermal-magnetic protection against both overloads and short circuits. Its bolt-on design keeps the breaker securely mounted, making it well suited for replacement projects as well as new installations in commercial and industrial facilities.
Key Features and Benefits
- 90 Amp current rating
- Two-pole design
- Bolt-on installation for compatible Square D NF panelboards
- Thermal-magnetic trip unit protects against overloads and short circuits
- Built-in trip indicator simplifies troubleshooting
- Rated for up to 480Y/277V AC systems
- Interrupting ratings up to 100 kA on applicable voltage ratings
- HACR rated for qualifying HVAC applications
- Accepts both copper and aluminum conductors
- Designed for dependable performance in commercial and industrial electrical systems
Technical Specifications
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Manufacturer: Square D
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Catalog Number: EJB24090
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Frame Type: E-Frame
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Product Type: Thermal-Magnetic Circuit Breaker
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Amperage Rating: 90 Amps
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Number of Poles: 2
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Maximum Operating Voltage: 480Y/277V AC
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Mounting Style: Bolt-On
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Panel Compatibility: Square D NF Panelboards
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Trip Unit Technology: Thermal-Magnetic
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Protection: Overload and Short Circuit
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Trip Indicator: Yes
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Holding Current: 1000 Amps
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Trip Unit Rating: 2300 Amps
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Interrupting Rating:
- 100 kAIC @ 120V AC
- 100 kAIC @ 120/240V AC
- 100 kAIC @ 240V AC
- 65 kAIC @ 277V AC
- 65 kAIC @ 480Y/277V AC
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Wire Size:
- Copper: AWG 14–2/0
- Aluminum: AWG 12–2/0
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Terminal Type: Aluminum Lugs
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Tightening Torque:
- 34.5 lb-in (3.9 N·m) for AWG 14–10
- 49.6 lb-in (5.6 N·m) for AWG 8–2/0
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Number of Spaces Required: 2
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Calibration Temperature: 40°C (104°F)
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Dimensions:
- Height: 5.66 in H
- Width: 1.96 in W
- Depth: 4.05 in D
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Weight: 3 lb
Material Compliance and Certifications
The Square D EJB24090 is cULus Listed and HACR rated. It is calibrated for operation in ambient temperatures up to 40°C (104°F) and is intended for installation in compatible Square D NF panelboards.
Where It Works Best
- Square D NF panelboards
- Commercial lighting panelboards
- 480Y/277V AC branch circuits
- Office buildings
- Schools and universities
- Healthcare facilities
- Retail buildings
- Manufacturing and industrial facilities
- HVAC and refrigeration equipment requiring HACR-rated circuit protection
- Electrical maintenance, repair, and panel upgrade projects
- Commercial applications requiring dependable two-pole overload and short-circuit protection
Use of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. CIRCUIT BREAKER SUPERSTORE® is an independent reseller and is not an authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do not apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.
Square D® is a registered trademark of Schneider Electric. Products sold are surplus, used, or refurbished and are NOT supplied by Schneider Electric or its affiliates.
Specifications
- Width:2.0
- Height:5.69
- Depth:3.44
- Poles:2
- Amperes:90
- A.I.C. Rating & Volts:65k @ 480VAC; 100k @ 240VAC
- Type:EJB
- Approx Dimensions:2.00"W x 5.69"L x 3.44"D
- Additional Notes:Thermal Magnetic, Bolt-on, Circuit Breaker for NF Panelboard. Includes Load-Side Lugs
Returns are easy
You may return unused items within 30 days of delivery for a full refund.
FREE ground shipping on breaker orders over $100 and all other items with orders over $500.
Shipping charges are Prepaid and Allowed on UPS Ground orders for all other products on orders over $500.00, again only when shipping within the lower 48 continental United States, provided the product(s) can safely ship UPS Ground.
If the product cannot safely ship via UPS Ground, or is too heavy to ship UPS Ground, then the product will be shipped via freightliner at buyer's expense.
CIRCUIT BREAKER SUPERSTORE® offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).
Same Day Shipping
We strive to ship out your items within one business day.
In rare circumstances, CIRCUIT BREAKER SUPERSTORE® may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.
CIRCUIT BREAKER SUPERSTORE® provides a limited 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer).