Square D QOUMF3B 3P Circuit Breaker | AmpState

Experience reliable protection with the Square D QOUMF3B 3P Circuit Breaker, a focused solution for safeguarding panelboards, load centers, and electrical distribution networks. Designed by Square D, this three-pole device is ideal for replacement projects and stocking spares, helping you keep the BOM aligned with the original part number while preserving system reliability.

Key benefits that matter in real-world installations

• Three-pole design supports multi‑phase circuits, delivering coordinated protection where it’s most needed.
• OEM part number QOUMF3B ensures straightforward replacement in existing Square D QO-series installations and diagrams.
• BOM-aligned stocking simplifies procurement and maintenance planning by matching the original component exactly.
• Panelboard and load center compatibility crafted for reliable performance within standard electrical distribution configurations.
• AmpState availability means ready access to this part when you’re refilling spares or completing repairs.
• Support for compatibility checks if you’re unsure about fit—our team can help verify the correct part number and ensure confident installation.

Ideal use cases

Perfect for replacement projects where the goal is to preserve original electrical characteristics and ensure consistent protection across existing panels. It’s equally suited for stocking spares in facilities that rely on Square D QO-type breakers, helping maintenance teams minimize downtime and avoid last‑minute substitutions.

Specifications at a glance

• Manufacturer: Square D
• Part Number: QOUMF3B
• Product Type: Circuit Breaker
• Poles: 3
• Availability: AmpState

If you’re aligning a BOM or restoring a distribution panel, the Square D QOUMF3B 3P Circuit Breaker offers a precise, reliable fit for your Square D QO installations. Reach out to AmpState for compatibility confirmation and seamless procurement—we’ll help ensure this part meets your exact project needs.