Square D H323N - 100A, 240V, 3-Pole, Disconnect Switch

The Square D H323N 100A, 240V, 3-Pole Disconnect Switch is engineered for demanding industrial and commercial environments that demand safe, reliable electrical isolation. Designed to support proper lockout/tagout (LOTO) procedures, this disconnect provides a dedicated, dependable disconnection point that keeps maintenance crews safe and downtime minimal. Built for long-term durability, the H323N maintains consistent performance even after repeated load disconnections.

Key features that stand out

• 3-Pole configuration delivers true three-phase isolation, ensuring all live conductors are securely separated during servicing.
• 100 Amp rating handles sizable loads common in industrial equipment, conveyors, and large motors without compromising safety.
• 240V operation aligns with standard three-phase power systems used in commercial facilities and manufacturing floors.
• Rugged construction built to withstand harsh environments, frequent operation cycles, and the daily wear of industrial use.
• Lockout/Tagout compatibility supports strict safety compliance, making it easier to establish safe work practices during maintenance.
• Reliable disconnection under load designed to interrupt power cleanly when required, reducing the risk of arcing and unexpected re-energization.

Ideal applications

• Maintenance shutoffs for machinery, presses, and production lines in manufacturing facilities
• Power isolation for large motors, pumps, and HVAC equipment in commercial or industrial settings
• Service disconnects within electrical panels and distribution equipment where a dedicated isolation point is essential

Why choose the Square D H323N? It’s more than just a disconnect switch—it’s a safety-focused, purpose-built solution that provides a clear, reliable isolation point exactly where you need it. By enabling proper LOTO procedures and offering durable performance under load, this 3-pole switch helps minimize downtime, support compliance, and protect your workforce during maintenance activities.

Practical guidance for deployment

• Match the 100A, 240V, 3-pole specifications to your system’s current and voltage ratings for safe operation.
• Install in a suitable enclosure and route wiring per local codes to ensure secure connections and easy access for lockout devices.
• Label the disconnect clearly and pair with standard lockout/tagout tags to communicate its purpose and status at a glance.
• Schedule periodic inspections to confirm mechanical integrity, verify that the handle actuates smoothly, and confirm there are no signs of insulation wear or corrosion.

Whether you’re safeguarding routine maintenance on heavy equipment or creating a reliable isolation point for service work, the Square D H323N delivers the performance, safety alignment, and durability your operations depend on. Choose this industrial disconnect switch for a proven, purpose-built solution that supports efficient, safer maintenance and uninterrupted workflow.