Square D QOU250 - 50 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Power reliable 240V protection with the Square D QOU250—a 50A, 2-pole bolt-on molded case circuit breaker designed for dependable branch circuit protection in panelboards and load centers. Built to withstand routine vibration and deliver precise protection, this unit is a solid choice for residential, commercial, and light industrial applications.

Why choose the QOU250 for your electrical panel?

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection, reducing loosening and nuisance trips in environments with equipment vibration or movement.
• Thermal-magnetic trip unit offers stable, repeatable protection by responding quickly to overcurrent and short-circuit conditions, helping protect downstream wiring and devices.
• OEM compatibility designed to pair with matching Square D load centers and panelboards, simplifying installation and ensuring consistent performance.
• Versatile, two-pole design tailored for 240V circuits, making it ideal for feeders, motors, and other 240V branch circuits in a variety of settings.
• Early installation accuracy with a precise 50A rating, enabling safe expansion or retrofit of electrical systems without overprotecting or underprotecting circuits.

Where this breaker fits

• Residential panels upgrading or repairing 240V circuits that require a robust 50A two-pole solution.
• Commercial panelboards and light industrial enclosures needing dependable overcurrent and short-circuit protection.
• New installations where OEM compatibility and secure mounting are priorities for long-term reliability.

Technical snapshot

• Manufacturer: Square D
• Part Number: QOU250
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 50A
• Voltage Rating: 240V
• Number of Poles: 2
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Designed to be a durable, drop-in replacement or upgrade for panelboards and load centers that require a trusted 50A, 240V two-pole solution, the QOU250 delivers consistent protection and straightforward installation. If you’re modernizing a panel or adding capacity for 240V circuits, this bolt-on breaker from Square D provides the reliability and compatibility that pro electricians count on—backed by a history of performance and designed to integrate smoothly with existing OEM components.