Schneider Electric 9421-ND3 - Disconnect Switch

Introducing the Schneider Electric 9421-ND3 Disconnect Switch — a purpose-built solution for safe, reliable electrical isolation in demanding industrial and commercial environments. Crafted to support lockout/tagout procedures and deliver a trustworthy disconnect under load, this switch is designed to keep maintenance crews protected and operations running smoothly.

Why the 9421-ND3 stands out

In workplaces where equipment must be serviced without risking accidental energization, the 9421-ND3 provides clear, dependable isolation. Its robust design and purpose-specific features help you meet strict safety protocols while minimizing downtime. This isn’t a generic switch — it’s a solution built for real-world electrical safety.

• Safe electrical isolation — ensures circuits are fully de-energized during maintenance, preventing arc flash and accidental re-energization.
• Lockout/Tagout compatibility — designed to integrate with standard lockout/tagout procedures, promoting compliant and consistent safety practices.
• Reliable disconnection under load — engineered to execute clean, decisive disconnections without compromising system integrity.
• Long-term durability — built to withstand the rigors of industrial and commercial environments, delivering consistent performance over time.
• Industrial-grade integration — a practical fit for service panels, machinery, and distribution setups where dependable isolation is essential.

Ideal applications

• Maintenance and servicing of motors, conveyors, and heavy equipment
• Panel and switchgear isolation within manufacturing and processing plants
• Facilities maintenance where safety-compliant lockout/tagout practices are mandatory
• Any scenario requiring a clear, safe disconnect under load to prevent unintended energization

Product details at a glance

• Product Type: Disconnect Switch
• Brand: Schneider Electric
• Model: 9421-ND3

How this improves your safety program

Choosing the 9421-ND3 means aligning with practical safety workflows. It supports immediate scene control during servicing, reduces the risk of human error, and helps maintain production schedules by preventing unexpected energization. Whether you’re upgrading an existing panel or configuring new equipment, this disconnect switch provides a dependable, compliant isolation point you can rely on day after day.

Practical tips for deployment

• Pair the 9421-ND3 with your current lockout/tagout devices to streamline safety procedures during routine maintenance.
• Plan installation in accessible locations to ensure quick disconnection during service calls while preserving nearby operations.
• Document the isolation point in your safety program to improve traceability and audit readiness.