Square D H321N - 30A, Disconnect Switch

Meet the Square D H321N - a rugged 30A disconnect switch engineered for safe electrical isolation in demanding industrial and commercial environments. Built to perform when it matters, this switch is a dependable solution for turning off power quickly and safely during maintenance, troubleshooting, or emergency shutdowns.

Designed with lockout/tagout (LOTO) procedures in mind, the H321N simplifies safety compliance for teams that service complex equipment. Its reliable disconnection under load ensures you can isolate circuits with confidence, reducing risk and protecting personnel during critical operations. Durable construction and proven performance make it a lasting choice for facilities that value safety, reliability, and uptime.

Why the Square D H321N stands out

• 30A electrical rating provides a clear, standard isolation point for common industrial circuits.
• Lockout/Tagout compatibility supports safe, compliant maintenance procedures.
• Dependable disconnection under load ensures reliable operation even when equipment is energized.
• Industrial-grade durability designed to resist wear and maintain performance in challenging environments.
• Trusted brand lineage from Square D, a name synonymous with dependable electrical safety components.

Ideal applications and use cases

• Isolating motors, pumps, conveyors, and large electrical loads for servicing or panel maintenance.
• Emergency shutdown scenarios where rapid, reliable power cut-off is essential.
• Panels and switchgear assemblies in manufacturing, processing, and commercial facilities.
• LOTO-driven maintenance routines to safeguard technicians during every service interval.

Specifications at a glance

• Amperage Rating: 30A
• Product Type: Disconnect Switch
• Brand: Square D
• Model: H321N

The Square D H321N is more than a disconnect switch; it’s a safety-critical access point for controlled energy isolation. If you’re outfitting industrial or commercial electrical systems that demand clear, reliable disconnection and strict adherence to lockout/tagout protocols, this 30A disconnect switch is a practical, durable choice that supports safer, more efficient maintenance and operation.