Square D MD3604X - Disconnect Switch

The Square D MD3604X Disconnect Switch is a high-performance solution designed to deliver safe, reliable electrical isolation in demanding industrial and commercial environments. Built to support proper lockout/tagout procedures, this disconnect switch ensures dependable disconnection under load while standing up to long-term use in challenging settings.

Key benefits that matter in real-world operations

• Lockout/Tagout readiness: Engineered to integrate seamlessly with safety protocols, helping protect workers during maintenance and service tasks.
• Reliable under load: Designed to provide a clean, definitive disconnect when circuits are energized, reducing risk during startup or servicing.
• Durable, long-term performance: Built to withstand the rigors of industrial and commercial duty, delivering consistent isolation over time.
• Straightforward integration: A practical choice for power distribution and control schemes that require a dependable isolation point without complex setup.

Ideal use cases

• Maintenance shutdowns on motors, feeders, and distribution circuits in manufacturing or processing facilities
• Temporary isolation points for equipment upgrades, repairs, or routine servicing in commercial environments
• Strategic safety interlocks and energy control points within electrical systems that demand clear, immediate disconnection

What sets the Square D MD3604X apart

• Brand reliability: Square D brings decades of experience in rugged electrical equipment designed for safety-critical applications.
• Purpose-built for safety procedures: The MD3604X is tailored to support lockout/tagout workflows, helping facilities stay compliant while protecting personnel.
• Focused on dependable isolation: Emphasizes a robust, unambiguous disconnection under load to minimize uncertainty during maintenance windows.

Product basics at a glance

• Product Type: Disconnect Switch
• Brand: Square D
• Model: MD3604X

Whether you’re equipping a new installation or upgrading an existing control system, the Square D MD3604X Disconnect Switch provides a reliable, practical solution for safe electrical isolation. It’s purposefully designed for environments where predictable performance, operator safety, and durable construction matter most—helping you maintain steady operations while safeguarding personnel during service and maintenance tasks.