Square D 9422-A3 - Disconnect Switch

Introducing the Square D 9422-A3 Disconnect Switch—the rugged, reliable solution for safe electrical isolation in demanding industrial and commercial environments. Built to perform where dependable isolation matters, this switch stands up to daily use and extreme conditions, delivering a clear line of protection for personnel and equipment.

Designed to support proper lockout/tagout procedures, the 9422-A3 provides a trusted path to de-energize equipment during maintenance, servicing, or repairs. When reliability under load is non-negotiable, this disconnect switch offers dependable disconnection to keep operations safe and compliant while work is underway.

Key advantages that matter in real-world operations

• Precise electrical isolation for panels and machinery, enabling safe work without compromising other systems.
• Lockout/tagout readiness that aligns with safety protocols, helping facilities maintain compliance and minimize downtime.
• Rugged, long-life construction designed for harsh industrial environments, reducing maintenance frequency and replacement costs.
• Consistent disconnection under load, reducing arcing and fault risk during critical shutdowns.
• Backed by Square D’s engineering heritage and the proven reliability of model 9422-A3 for predictable performance.

Who benefits most

Facility managers, electrical contractors, and maintenance teams responsible for safe equipment shutdowns will appreciate the clarity and reliability of this disconnect switch. It’s an ideal fit for service entrances, motor control centers, and standalone isolation points across manufacturing floors, data centers, and large commercial facilities.

How it helps you run a safer, more efficient operation

By providing a clear, maintainable isolation point, the Square D 9422-A3 minimizes risk during servicing and reduces the guesswork in lockout/tagout procedures. Its robust design withstands repeated operation in busy electrical rooms, helping you keep downtime short and uptime high.

Practical tips for use

• Integrate with your existing lockout/tagout program to create a defined isolation boundary around energized equipment.
• Regularly verify smooth operation of the disconnect path to ensure reliable performance when under load.
• Schedule periodic functional checks to confirm the 9422-A3 remains ready for rapid disconnection when needed.