EJB24050 - 50 Amp Circuit Breaker
- 50 Amp
- 65k @ 480VAC; 100k @ 240VAC
- 2 Pole
Purchase Options: New In Box
EJB24050 - 50 Amp Circuit Breaker Description
EJB24050 - 50 Amp Circuit Breaker
The Square D EJB24050 is a 50 Amp, 2-pole E-Frame circuit breaker built for reliable branch circuit protection in compatible Square D NF panelboards. Whether you're replacing an existing breaker or maintaining a commercial electrical distribution system, this model delivers dependable protection against overloads and short circuits using a proven thermal-magnetic trip mechanism. Rated for 480Y/277 VAC applications and offering interrupting ratings up to 100 kA at applicable voltages, the EJB24050 is well suited for demanding commercial and industrial environments. It also accepts both copper and aluminum conductors, giving installers greater flexibility during installation and maintenance.
Key Features and Benefits
- 50 Amp, 2-pole E-Frame circuit breaker
- Bolt-on mounting for secure installation
- Compatible with Square D NF panelboards
- Thermal-magnetic trip unit protects against overloads and short circuits
- Built-in trip indicator makes troubleshooting faster
- Rated for systems up to 480Y/277 VAC
- Interrupting capacity up to 100 kA at applicable voltages
- Accepts copper and aluminum conductors
- HACR and HID rated for approved applications
- Supports compatible field-installable accessories
Technical Specifications
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Manufacturer: Square D
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Catalog Number: EJB24050
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Series: EDB / EGB / EJB 125A Frame
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Current Rating: 50 Amps
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Poles: 2
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Mounting Style: Bolt-On
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Maximum Voltage: 480Y/277 VAC
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Trip Unit: Thermal-Magnetic
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Protection: Overload and Short Circuit
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Trip Rating: 1800 A
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Holding Current: 630 A
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Interrupting Ratings:
- 100 kA @ 120 VAC
- 100 kA @ 120/240 VAC
- 100 kA @ 240 VAC
- 65 kA @ 277 VAC
- 65 kA @ 480Y/277 VAC
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Wire Range:
- Copper: AWG 14–2/0
- Aluminum: AWG 12–2/0
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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 lbs.
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Operating Temperature: Up to 104°F (40°C)
Material Compliance and Certifications
The Square D EJB24050 is cULus Listed, TAA Compliant, HACR rated, and UL Listed for High Intensity Discharge (HID) applications. These certifications make it a suitable choice for installations that require compliance with recognized North American safety standards.
Where It Works Best
The EJB24050 is commonly installed in commercial buildings, schools, healthcare facilities, retail spaces, office buildings, and light industrial facilities that use compatible Square D NF panelboards. It's a practical choice for protecting lighting circuits, HVAC equipment, and general branch circuits where dependable overcurrent protection is essential.
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:50
- 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.
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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.
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Same Day Shipping
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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).