Square D EJB24045 - 45 A, 480 V, 2-Pole Bolt-On Circuit Breaker | AmpState

The Square D EJB24045 is a 45A, 480V, 2-pole bolt-on molded case circuit breaker engineered for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built to integrate seamlessly with Square D OEM equipment, it delivers you a reliable solution for protecting vital circuits in residential, commercial, and light industrial settings.

• Secure bolt-on mounting: provides a rigid, vibration-resistant bus connection that stays tight even in busy electrical environments.
• Thermal-magnetic trip unit: combines precise thermal overload protection with fast magnetic response to short circuits, delivering stable, repeatable protection performance.
• OEM-compatible design: specifically designed to pair with matching Square D load centers and panelboards for straightforward installation and optimal electrical coordination.
• Versatile applications: ideal for residential panels, commercial distribution, and light industrial circuits that require reliable 2-pole protection at 480V.

Technical snapshot

• Manufacturer: Square D
• Part Number: EJB24045
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 45A
• Voltage Rating: 480V
• Number of Poles: 2
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Whether you’re upgrading a panel for improved protection, designing a new electrical distribution setup, or replacing a worn-out breaker in a Square D system, the EJB24045 delivers predictable, dependable performance. Use it to safeguard motors, lighting, and other critical loads in 480V circuits, while enjoying the confidence of OEM compatibility and solid, vibration-resistant mounting that keeps connections secure over time.