Square D QMB-323-HW - 100A, 240V, 3-Pole, Fused Safety Switch

Square D QMB-323-HW is a 100A, 240V, 3-Pole Fused Safety Switch engineered to deliver robust electrical isolation in demanding industrial and commercial environments. It’s purpose-built to support proper lockout/tagout procedures and provides dependable disconnection under load, helping protect people and equipment while reducing unplanned downtime.

• 3-Pole, 100A, 240V configuration ensures reliable control for three-phase systems, making it ideal for motors, conveyors, pumps, and other heavy-duty equipment.
• Fused safety switching integrates overcurrent protection with the disconnect mechanism, enabling fast fault clearance and safer maintenance sequencing.
• Lockout/Tagout ready design supports standard safety protocols, helping teams meet workplace safety requirements during servicing.
• Safe disconnection under load capability minimizes equipment exposure and arc risk, preserving downstream components and operator safety.
• Industrial and commercial versatility suited to a wide range of installations—from manufacturing floors to utility rooms—where reliable, hands-off isolation is essential.

Why choose this fused safety switch? It provides a clear, dedicated point of electrical isolation with built-in protection that’s specifically designed for environments where downtime matters and safety cannot be compromised. The Square D QMB-323-HW stands up to daily use, delivering consistent performance over the long term and offering peace of mind for maintenance crews and plant managers alike.

Practical use cases include machine safeguarding in production lines, servicing heavy equipment in factories, and creating compliant, safe lockout/tagout stations in commercial facilities. If you need a dependable, three-phase isolation solution with fused protection and lockout-ready features, the QMB-323-HW is a precise fit that aligns with your electrical safety and reliability goals.