EJB34090 - 90 Amp Circuit Breaker
- 90 Amp
- 65k @ 480VAC; 100k @ 240VAC
- 3 Pole
Purchase Options: New In Box
EJB34090 - 90 Amp Circuit Breaker Description
EJB34090 - 90 Amp Circuit Breaker
When you need a replacement breaker that matches the original equipment, the Square D EJB34090 is built to do exactly that. This 90 Amp, 3-pole E-Frame circuit breaker is designed for use in compatible Square D NF panelboards, delivering dependable protection against overloads and short circuits. Its thermal-magnetic trip unit responds to both long-term overcurrent conditions and instantaneous faults, helping protect branch circuits and connected equipment. A built-in trip indicator also makes it easy to tell when the breaker has tripped due to a fault instead of simply being switched off, saving time during inspections and troubleshooting.
Key Features and Benefits
- 90 Amp current rating
- Three-pole design for three-phase electrical systems
- Bolt-on installation for compatible Square D NF panelboards
- Thermal-magnetic trip unit protects against overloads and short circuits
- Built-in trip indicator simplifies fault identification
- Rated for 480Y/277V AC applications
- Up to 100 kA interrupting capacity at applicable voltage ratings
- HACR rated for qualifying HVAC equipment
- Compatible with copper and aluminum conductors
- Engineered for dependable long-term performance in commercial and industrial environments
Technical Specifications
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Manufacturer: Square D
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Catalog Number: EJB34090
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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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Voltage Rating: 480Y/277V AC
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Poles: 3
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Mounting Type: Bolt-On
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Compatible Panelboards: Square D NF Panelboards
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Trip Technology: Thermal-Magnetic
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Trip Rating: 2,300 A
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Holding Current: 1,000 A
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Protection: Overload and Short Circuit
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Interrupting Rating:
- 100 kA @ 120V AC
- 100 kA @ 120/240V AC
- 100 kA @ 240V AC
- 65 kA @ 277V AC
- 65 kA @ 480Y/277V AC
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Wire Range:
- Copper: AWG 14–2/0
- Aluminum: AWG 12–2/0
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Terminal Type: Lugs
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Dimensions:
- 5.66 in. × 2.94 in. × 4.05 in.
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Weight: Approximately 4 lbs.
Material Compliance and Certifications
The Square D EJB34090 is cULus Listed, HACR-rated, and TAA-compliant. It is calibrated for operation in ambient temperatures up to 40°C (104°F) and is manufactured for use in compatible Square D NF panelboards.
Where It Works Best
- Commercial office buildings
- Manufacturing facilities
- Warehouses and distribution centers
- Healthcare facilities
- Schools and universities
- Retail buildings
- HVAC equipment requiring HACR-rated protection
- Maintenance and retrofit projects involving compatible Square D NF panelboards
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:3.0
- Height:5.69
- Depth:3.44
- Poles:3
- Amperes:90
- A.I.C. Rating & Volts:65k @ 480VAC; 100k @ 240VAC
- Type:EJB
- Approx Dimensions:3.00"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).