Square D HU461 - 30A, 600V, 4-Pole, Disconnect Switch

The Square D HU461 Disconnect Switch is built for demanding industrial and commercial environments where safe, reliable electrical isolation is non-negotiable. With a robust 4-pole design, this unit delivers true, mechanical disconnection under load while supporting lockout/tagout procedures to protect maintenance crews and ensure compliance on every job.

Key features that matter in the field

• 4-pole isolation provides complete disconnection across all conductors, delivering solid protection for personnel during servicing.
• 30 A current rating accommodates a wide range of feeders and control circuits without compromising safety.
• 600 V maximum voltage makes it suitable for typical industrial power distribution setups, from manufacturing floors to larger control systems.
• Lockout/tagout readiness features a padlock-capable design to secure the switch in the OFF position during maintenance, helping enforce safe work practices.
• Durable, purpose-built construction designed to withstand the rigors of continuous operation in active electrical environments.
• Ease of integration engineered for straightforward wiring and compatibility with standard enclosures and switchgear used in panel boards and distribution systems.

Ideal use cases

• Service disconnect for feeders feeding industrial machinery, motors, or control panels in factories and warehouses.
• Primary isolation point in switchgear or distribution panels where a hard, mechanical disconnect is required.
• Lockout/tagout-ready solution for maintenance work, ensuring a clearly de-energized state before personnel access.
• Backup or supplementary isolation in commercial electrical rooms where reliable disconnection is essential for safety and uptime.

Why choose the HU461 for your setup

What sets this disconnect switch apart is its emphasis on dependable isolation combined with practical field usability. The 4-pole design ensures all conductors can be safely separated, reducing the risk of re-energization during service. The 30 A rating keeps wiring and protection strategies straightforward, while the 600 V rating covers a broad range of industrial applications. When safety and reliability matter most, the HU461 provides a clear, mechanical disconnect that you can trust—paired with straightforward installation and straightforward integration into existing layouts.

Installation and safety considerations

Install the HU461 in accordance with local electrical codes and the equipment’s wiring instructions. Use a compliant enclosure and ensure the switch is in the OFF position before performing any maintenance. For personnel protection, secure a padlock through the designated lockout point to prevent accidental energization during servicing. Regular checks should verify that the disconnect remains mechanically sound and capable of delivering a true open-circuit condition when required.