Square D QMB321TW QMB Fusible Panelboard Switch 30A 240V 30 Amp 3P #06H7PR8*CO

Introducing the Square D QMB321TW QMB Fusible Panelboard Switch—a compact, purpose-built protection device crafted for dependable electrical distribution in demanding environments. With a 30A, 240V, 3P configuration, it drops directly into QMB panelboards, simplifying upgrades, retrofits, and maintenance replacements where reliability matters most. Built by Square D for electricians, panel builders, and MRO teams, the QMB321TW delivers targeted protection in a tight footprint.

What makes this fusible panelboard switch different?

• Integrated fusible protection reduces wiring complexity and improves protection coordination within your panelboard, helping you meet protection code requirements with fewer components.
• Three-pole design (3P) ensures balanced operation across all phases for safer isolation and enhanced reliability during load switching.
• Direct compatibility with QMB panels means straightforward upgrades and consistent performance without custom wiring or adapters.
• Compact footprint fits crowded switchgear enclosures, making retrofits and replacements easier in space-constrained facilities.
• Maintenance-friendly replacement path minimizes downtime during service windows and inspections, so you stay up and running longer.
• Rugged, industrial-grade construction designed to withstand demanding environments found in industrial facilities, commercial buildings, and challenging residential sites.

Specifications at a glance

• Amperage rating: 30A
• Voltage rating: 240V
• Pole: 3P
• Manufacturer reference: #06H7PR8*CO

Ideal use cases

• Panel upgrades in industrial facilities where reliable fusible protection simplifies protection schemes.
• Retrofit projects in commercial buildings that require dependable, easy-to-install protection components.
• Maintenance replacements to reduce downtime and keep distribution code-compliant.
• Spare-stock for MRO teams to accelerate service responses and minimize disruption.

Choosing the QMB321TW means selecting a trusted Square D component designed to deliver consistent protection and straightforward installation. It’s more than a switch—it’s a practical, long-term part of your electrical distribution strategy, built to help you keep systems safe, compliant, and ready for tomorrow’s demands.