Square D QMB362T21W - 60A, 600V, 3-Pole, Fused Disconnect Switch

The Square D QMB362T21W fused disconnect switch brings robust, dependable electrical isolation to demanding industrial and commercial environments. With a 60A rating and 600V capacity, this 3-pole disconnect is built to reliably interrupt power and safeguard personnel during maintenance and troubleshooting, while supporting proper lockout/tagout procedures for enhanced safety.

• Amperage rating: 60 A
• Voltage rating: 600 V
• Poles: 3-Pole
• Product type: Fused Disconnect Switch
• Brand/model: Square D, QMB362T21W

Why this model stands out

• True three-phase isolation: The 3-pole design provides comprehensive protection for three-phase motors and equipment, reducing the risk of partial energization during service.
• Fused protection for load safety: Integrated fuses help control fault currents and minimize equipment damage, delivering reliable disconnection even under load.
• Lockout/tagout compatibility: Specifically designed to support standard lockout/tagout procedures, helping maintenance teams work safely without compromising system reliability.
• Durable, long-term performance: Engineered for industrial and commercial use, this switch is built to hold up under continuous operation and demanding conditions.
• Clear, straightforward operation: Provides a decisive open/close action that confirms isolation status, aiding quick safety checks during routine or critical tasks.

Ideal applications

• Motor control centers and large drive systems where three-phase isolation is essential
• Industrial conveyors, pumps, and fans that require safe, reliable service disconnects
• HVAC equipment and process lines in manufacturing environments
• Secondary or tertiary power distribution panels needing a robust fused disconnect

What problems it solves

• Eliminates ambiguity during maintenance by delivering definitive disconnection under load
• Supports rigorous lockout/tagout procedures to protect personnel
• Minimizes downtime and equipment damage from fault currents through reliable fuse protection
• Provides a scalable solution for 3-phase systems facing demanding industrial workloads

Practical tips for use and maintenance

• Inspect fuses and the disconnect mechanism regularly to ensure clean, trouble-free operation.
• Coordinate lockout/tagout procedures with your facility’s safety program to maximize protection during maintenance.
• Pair with compatible Square D components for seamless electrical integration and consistent performance.
• Document performance checks and replacements as part of your preventive maintenance routine to extend service life.

Choose the Square D QMB362T21W when you need a dependable, service-ready fused disconnect switch that upholds safety, simplifies maintenance, and stands up to the demands of modern industrial and commercial environments.