Square D H322N - 60A, 3-Pole, Fused Disconnect Switch

The Square D H322N fused disconnect switch delivers safe, reliable electrical isolation for indoor industrial and commercial environments. Built to support proper lockout/tagout procedures, it ensures equipment can be isolated during maintenance without risk of unexpected energization. With robust performance under load, this 60A, 3-pole disconnect is a trusted choice for demanding facilities.

Key specifications and benefits

• 60A amperage rating optimizes protection for moderate electrical loads across three-phase systems.
• 3-Pole configuration designed for three-phase power distribution, enabling efficient and clean isolation of all conductors.
• NEMA 1 enclosure provides dependable indoor protection against dust and incidental exposure in typical commercial and light-industrial spaces.
• Fused disconnect functionality combines overcurrent protection with immediate, clear isolation points for safety and reliability.
• Lockout/Tagout compatibility supports safe servicing practices, helping facilities maintain OSHA-compliant safety protocols during maintenance or repair.
• Durable, long-term performance engineered to withstand regular operation in demanding environments, reducing downtime and replacement frequency.

Ideal applications

• Machine control panels and motor control centers where a dedicated disconnect is required for safe startup and shutdown.
• Service disconnects for motors, conveyors, pumps, and other three-phase equipment in manufacturing and processing facilities.
• Retrofits or new installations needing a reliable fused switch with built-in overcurrent protection and straightforward isolation.

Why choose the Square D H322N

• It pairs integrated fuse protection with a robust three-pole disconnect, offering comprehensive protection in one compact unit.
• The NEMA 1 indoor enclosure design suits standard indoor spaces, delivering dependable protection where weather exposure isn’t a concern.
• Built for consistent performance under load, it minimizes maintenance needs and supports long operational life in busy facilities.

Practical tips for setup and maintenance

• Ensure wiring is configured for a three-phase system to match the 3-Pole design.
• Audit lockout/tagout procedures to maximize safety during servicing, using the H322N’s compatibility to maintain compliance.
• Verify that the chosen fusing scheme aligns with system requirements to maintain appropriate protection levels and disablement when needed.
• In routine maintenance, inspect the enclosure for signs of wear and confirm that the disconnect mechanism remains accessible and functional.