Square D 9421-ND3 - 60A, Disconnect Switch

Engineered for reliability in demanding industrial and commercial settings, the Square D 9421-ND3 is a high-performance 60A Disconnect Switch designed to provide safe electrical isolation when it matters most. Built to support lockout/tagout procedures and deliver a clean, dependable disconnection under load, this switch keeps equipment and personnel safe during maintenance and servicing.

Why choose the Square D 9421-ND3 60A Disconnect Switch

• Precise current control: With a 60A rating, this disconnect switch is suited for mid-range loads, giving you a single-point isolation for circuits powering motors, feeders, and associated equipment.
• Safe lockout/tagout support: The design prioritizes safe maintenance practices, enabling proper lockout/tagout procedures to prevent accidental energization.
• Dependable under load: Specifically engineered to deliver reliable disconnection even when circuits are live, reducing downtime and improving on-site safety.
• Durable, long-term performance: Built for continuous use in challenging environments, the Square D construction emphasizes durability and steady operation over time.
• Brand assurance: As a Square D solution, this model reflects the brand’s engineering philosophy for dependable electrical isolation in industrial and commercial applications.

Ideal use scenarios

The Square D 9421-ND3 is an excellent fit for maintenance shutdowns, equipment upgrades, and routine servicing in factories, warehouses, and commercial facilities. It provides a clear, reliable point of isolation to protect technicians working on motor drives, power feeds, or control panels. Its 60A capacity makes it a practical choice for applications that require robust protection without oversizing the disconnect.

What you’ll get with this model

• Product Type: Disconnect Switch
• Brand: Square D
• Model: 9421-ND3
• Amperage Rating: 60A

Practical tips for optimum safety and performance

Pair the Square D 9421-ND3 with your standard lockout/tagout procedures and ensure that all maintenance personnel have access to proper lockout devices. Before servicing, verify isolation with appropriate testing methods, and keep the disconnect in a clearly de-energized state during work. For ongoing reliability, schedule periodic inspections to confirm mechanical integrity and ensure the switch remains ready to safely interrupt power as needed.