Square D QOU325 - 25 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Square D QOU325 is a purpose-built 25A, 240V, 3-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built by a trusted name in electrical protection, this device combines rugged mounting with precise protection to keep residential, commercial, and light industrial systems running smoothly.

Why this breaker stands out

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection, helping to maintain reliable electrical contact even in environments with equipment or machinery that generates movement.
• Thermal-magnetic trip unit delivers stable, repeatable protection performance across a range of loads and temperatures, responding quickly to short circuits and overloads.
• OEM-ready compatibility is designed to fit with matching Square D OEM load centers and panelboards, ensuring proper coordination and seamless integration into existing systems.
• Three-pole, 240V operation makes it ideal for guarding 240V circuits and multi-wire branches common in residential, commercial, and light industrial applications.

What it’s great for

• Replacing failed or incompatible breakers in panelboards or load centers that require a bolt-on, molded case solution.
• Retrofitting electrical panels to improve reliability in equipment rooms, data centers, small offices, or light industrial spaces.
• Providing dedicated protection for 240V three-phase or multi-wire branch circuits where a 25A rating strikes the right balance between safety and functionality.

Technical specifications at a glance

• Manufacturer: Square D
• Part Number: QOU325
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 25A
• Voltage Rating: 240V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Choose the Square D QOU325 when you need a durable, OEM-compatible bolt-on breaker that delivers precise thermal-magnetic protection for 3-pole, 240V circuits. It’s a practical, reliable choice for maintaining safe, continuous operation in a wide range of electrical installations.