Square D MD3304X - 30A, 3-Pole, Disconnect Switch

Meet the Square D MD3304X—a rugged 30A, 3-Pole Disconnect Switch designed for industrial and commercial environments where safe electrical isolation and dependable performance are non-negotiable. Built to support proper lockout/tagout procedures, this disconnect switch ensures maintenance teams can work confidently, knowing the circuit remains isolated until the job is complete.

Why the MD3304X stands out

• Three-pole isolation: Effectively disconnects all three conductors in a three-phase system, delivering complete safety during servicing.
• 30-amp capacity: Ideal for common motor starters, control circuits, and equipment feeds, providing reliable performance without overkill.
• Lockout/tagout readiness: Designed to accommodate safety procedures that keep workers protected during maintenance and repair work.
• Reliable disconnection under load: Ensures equipment can be safely isolated even when circuits are energized, reducing risk during shutoff operations.
• Durable industrial design: Built to withstand the rigors of everyday use in demanding environments, delivering long-term service life.

Ideal use cases

• Motor control centers and machinery shutoffs where safe isolation is critical.
• Maintenance and service work on pumps, fans, conveyors, and HVAC systems.
• Auxiliary power feeds and equipment where a reliable disconnect improves safety and uptime.

How it helps your operation

The MD3304X translates safety policy into practical outcomes: predictable, clear isolation points; enhanced worker protection through lockout/tagout compatibility; and a robust, load-capable disconnect that minimizes unexpected energization during maintenance. By chooser this switch, your facility gains a dependable, purpose-built solution that supports everyday safety protocols and reduces downtime caused by unclear or unreliable isolation.

Specifications at a glance

• Amperage Rating: 30A
• Poles: 3-Pole
• Product Type: Disconnect Switch
• Brand: Square D
• Model: MD3304X