Square D HU363RB - 100A, 600V, 3-Pole, Safety Switch

The Square D HU363RB Safety Switch delivers dependable electrical isolation for demanding industrial and commercial environments. With a 100A rating, 600V capability, and a 3-pole configuration, this switch provides a clear, safe disconnect under load while standing up to long-term use. Its NEMA 3R enclosure is engineered for outdoor and rugged settings, ensuring reliable operation come rain, dust, or temperature fluctuations.

• Amperage Rating: 100A
• Voltage Rating: 600V
• Poles: 3-Pole
• Enclosure: NEMA 3R (weather-resistant for outdoor and harsh environments)
• Type: Safety Switch designed for safe isolation and lockout/tagout procedures

Why this safety switch stands out

• The 3-pole design ensures complete disconnection for three-phase equipment, reducing the risk of partial energization during maintenance.
• NEMA 3R enclosure guards against exposure to moisture, dust, and temperature changes, making it suitable for outdoor installations and exposed interiors.
• Built to support proper lockout/tagout procedures, helping facilities meet safety compliance and protect maintenance personnel.
• Engineered to provide dependable disconnection under load, minimizing downtime and ensuring quick, safe energy shutdown when needed.

Ideal applications and use cases

Designed for both industrial and commercial settings, the HU363RB is well-suited for electrical rooms, outdoor utility areas, and equipment feeds that require robust isolation and reliable performance. Use it to safeguard motors, conveyors, HVAC systems, and other three-phase equipment where safe shutdown and maintenance safety are priorities. Its rugged enclosure makes it a dependable choice for facilities that demand consistent protection from the elements.

How it benefits your operation

By providing a clear, safe disconnect with durable construction, the HU363RB helps minimize downtime during routine servicing and emergency shutdowns. The combination of 100A capacity, 600V compatibility, and a weather-resistant enclosure gives facilities confidence that their electrical isolation will perform when it matters most. This switch supports compliance with lockout/tagout practices and contributes to safer, more efficient maintenance workflows.

Specifications at a glance

• Product Type: Safety Switch
• Brand: Square D
• Model: HU363RB
• Enclosure Rating: NEMA 3R
• Number of Poles: 3
• Amperage: 100A
• Voltage: 600V