Square D QOB225 - 25 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Introducing the Square D QOB225 — a 25 amp, 240-volt, 2-pole bolt-on molded case circuit breaker built for dependable branch-circuit overcurrent and short-circuit protection in panelboards and load centers.

• Secure bolt-on mounting: a rigid, vibration-resistant bus connection that stays put even in busy electrical environments.
• Thermal-magnetic trip unit: delivers stable, repeatable protection performance for both overcurrent and short-circuit events.
• OEM-compatible design: aligns with matching Square D load centers and panelboards for straightforward installation and reliable operation.
• Versatile for multiple settings: suitable for residential, commercial, and light industrial applications where dependable circuit protection matters.

Technical snapshot

• Manufacturer: Square D
• Part Number: QOB225
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 25A
• Voltage Rating: 240V
• Number of Poles: 2
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Why the QOB225 stands out

With its two-pole 25A configuration, this breaker is ideal for safeguarding shared 240V circuits or paired 120V legs requiring synchronized protection. The bolt-on mounting delivers a robust, vibration-resistant connection to the bus, reducing wear and movement over time. The thermal-magnetic trip unit blends precise, predictable trip behavior with fast fault response, helping protect downstream equipment while minimizing nuisance trips.

Use scenarios

• Protecting a dedicated 25A 240V circuit for equipment in light commercial spaces.
• Replacing a failed 2-pole breaker in residential subpanels with a dependable, OEM-compatible unit.
• Retrofit projects where OEM compatibility with the panelboard is essential for seamless operation and maintenance.

Compatibility and safety

Designed for use with matching Square D OEM load centers and panelboards, the QOB225 ensures dependable interchangeability within the same family. This alignment minimizes compatibility surprises and supports consistent maintenance and spare-part availability.