Square D H323N - 100A, 240V, Safety Switch

Introducing the Square D H323N Safety Switch — a purpose-built disconnect that keeps industrial and commercial electrical systems safe and controllable. With a 100A rating and 240V operation, it delivers reliable isolation when you need it most.

Designed to support proper lockout/tagout procedures, the H323N provides a secure barrier that prevents accidental re-energization during maintenance or repairs. Its construction is geared for long-term durability, delivering dependable disconnection under load across demanding environments.

Why it matters

In any facility where machinery or feeders require periodic maintenance, a robust safety switch is essential. The Square D H323N offers a proven combination of quick access disconnection, clear visibility of switch status, and sturdy, industrial-grade performance that stays reliable day after day.

Key features and benefits

• 100A, 240V capability: Powerful enough to safely interrupt the current drawn by motors, conveyors, and other heavy loads typical in industrial settings.
• Lockout/Tagout friendly: Ready for standard LOTO procedures to minimize accidental startups during service.
• Under-load disconnection: Ensures safe isolation even when equipment is active, reducing risk during maintenance.
• Durable enclosure and mechanism: Built for rigorous daily use in harsh environments, delivering long-term reliability.
• Clear, dependable isolation: Provides a tangible disconnection that maintenance staff can trust for safe workplace practices.

Ideal use cases

Perfect for service disconnects in industrial facilities, commercial electrical rooms, or anywhere safe energy isolation is required between maintenance windows. Use it to shut down feeders, motors, or branch circuits, and keep crews safe while work is performed.

Specifications at a glance

• Amperage Rating: 100A
• Voltage Rating: 240V
• Product Type: Safety Switch
• Brand: Square D
• Model: H323N

Who benefits most

Electrical engineers, facility managers, maintenance teams, and electricians responsible for equipment safety and operational continuity will appreciate the clarity, reliability, and ease of use the Square D H323N delivers in daily operations.

Practical tips for installation and use

• Always verify the switch is in the OFF position and lock it out before performing any maintenance.
• Integrate the safety switch with standard padlocks and warning tags to reinforce lockout/tagout procedures.