Square D H364 - 200A, 600V, 3-Pole, Safety Switch

Meet the Square D H364 Safety Switch—a rugged, three-pole disconnect engineered for dependable electrical isolation in demanding industrial and commercial environments. With a 200A rating and a 600V capacity, this Safety Switch delivers a true disconnect under load, helping you protect personnel and equipment. Its thoughtful design also supports proper lockout/tagout procedures, making maintenance safer and compliant. Built for long-term durability, the H364 stands up to daily use in harsh conditions where reliable power control matters most.

Specifications at a glance

• Amperage rating: 200A
• Voltage rating: 600V
• Number of poles: 3-Pole
• Product type: Safety Switch
• Brand: Square D
• Model: H364

What makes the Square D H364 stand out

• Complete three-pole isolation: disconnects all three phase conductors, ensuring there’s no residual live voltage in downstream equipment.
• Lockout/tagout friendly: designed to support standard safety procedures, helping maintain a safe work environment during servicing.
• Reliable disconnection under load: engineered to interrupt power cleanly when equipment is running, reducing the risk of arcing and unexpected startup.
• Industrial-grade durability: built to withstand the rigors of daily use in busy facilities, delivering long-term performance in both manufacturing and commercial settings.

Ideal environments and use cases

• Manufacturing floors, machine rooms, and process lines that require dependable power isolation.
• Motor control centers and large feeders where quick, safe disconnection is essential.
• Conveyor systems, HVAC equipment, and other equipment that demand reliable on/off control with safe maintenance procedures.
• Electrical rooms and service entrances in commercial facilities needing rigorous safety standards.

Why this safety switch benefits your operation

The Square D H364 delivers clarity and control where it matters most. Its 200A, 600V ratings are purpose-built for mid- to large-scale electrical systems, providing a robust barrier between power and personnel during servicing. By aligning with lockout/tagout practices, it helps you maintain compliance and minimize downtime caused by safety incidents. The combination of complete circuit disconnection and durable construction translates to fewer maintenance interruptions and greater peace of mind for your team.

Practical considerations and setup tips

• Ensure installation is performed by qualified personnel following local electrical codes and safety guidelines.
• Place the switch in an accessible location to allow quick off-action during emergencies or maintenance.
• Integrate the switch into your lockout/tagout procedures to maximize on-site safety for technicians.
• Use the 3-pole design to isolate all phases in three-phase systems, eliminating partial energization risks.

Choosing the Square D H364 means selecting a proven, purpose-built solution for safe electrical isolation that aligns with professional maintenance practices and the demands of busy electrical environments. If you need a reliable, three-pole disconnect capable of handling 200A at 600V, this safety switch is designed to deliver steady performance, day in and day out.