Square D QMB224W – 200A, 240V, 2-Pole Fusible Panelboard Switch – QMB Series

Introducing the Square D QMB224W, a 200A, 240V, 2-Pole Fusible Panelboard Switch from Schneider Electric’s trusted QMB Series. Engineered for use inside QMB fusible panelboards, this device delivers a definitive load disconnect paired with overcurrent protection when matched with the appropriate fuse class. Its robust design is made to support demanding electrical installations while keeping maintenance teams safe and confident during servicing.

• High‑fault‑current readiness: 200 kAIC interrupt rating handles the surge currents common in commercial and light industrial environments, providing reliable protection where it matters most.
• Two-pole, 240V operation: Precisely configured for 240V circuits with two poles, delivering clean isolation and dependable switching in tight panelboard spaces.
• Fuse-class defined protection: Protection level is defined by the fuse class you choose, offering a controlled, predictable protection scheme tailored to your installation.
• QMB compatibility: Specifically designed to integrate seamlessly with QMB fusible panelboards, ensuring a code‑compliant, easy‑to‑service disconnect for your loads.
• Maintenance‑friendly design: A compact, straightforward disconnect that simplifies servicing and reduces downtime during maintenance windows.

Ideal use cases

• Main or sub-disconnect in QMB fusible panelboards where a reliable isolation point is essential
• Commercial or light industrial installations needing robust, easy-to-service load disconnect
• Applications requiring clear, safe access to switchgear during maintenance and fault conditions

Installation & compatibility tips

• Verify fuse class compatibility with your panelboard specifications and local electrical codes before commissioning.
• Clearly label each circuit to communicate the exact disconnect point and protection scheme for maintenance teams.
• Periodically inspect mounting, connections, and terminations for signs of wear, overheating, or looseness that could affect performance.

Why choose Square D / Schneider Electric

• The QMB family is built for dependable panelboard performance, balancing a compact, durable design with a guaranteed load disconnect and reliable overcurrent protection.
• With decades of electrical distribution expertise, Schneider Electric delivers a fusible solution that integrates smoothly with QMB panelboards and stands up to demanding environments over time.

For a proven, future‑proof fusible disconnect that pairs perfectly with QMB panelboards and 240V circuits, the QMB224W offers a precise, maintenance-friendly answer—combining clear isolation, scalable protection, and trusted Schneider Electric reliability.