Square D HLL36150LV - 150A, 600V, 3-Pole, Disconnect Switch

When you need to isolate three-phase equipment safely and reliably, the Square D HLL36150LV stands out. This 150A, 600V, 3-Pole disconnect switch is engineered for industrial and commercial environments where lockout/tagout compliance and dependable under-load disconnection are non-negotiable.

Key benefits:

• Three-pole isolation: Ensures all three phases are disconnected, preventing partial energization and reducing shock risk during maintenance.
• Robust 150 A, 600 V rating: Handles typical industrial feeders and equipment in low- to medium-voltage circuits.
• Lockout/tagout ready: Designed to support safe lockout/tagout procedures, helping teams meet safety standards and pass audits.
• Durable, long-term performance: Built for repeated operations in demanding environments, delivering consistent disconnection when it's needed most.

Ideal applications and use cases:

• Maintenance shutdowns for motors, conveyors, pumps, and other three-phase machinery.
• Feeder isolation and circuit clearance in commercial spaces, manufacturing floors, and industrial control panels.
• Emergency isolation points where quick, reliable disconnection under load is essential.

How it helps your operation:

• Prevents accidental re-energization during service with clear, physical isolation of all conductors.
• Supports compliance and workplace safety programs by aligning with lockout/tagout workflows.
• Minimizes downtime by providing a straightforward, durable disconnector that technicians can trust.

Technical snapshot:

• Brand: Square D
• Model: HLL36150LV
• Product Type: Disconnect Switch
• Number of Poles: 3
• Amperage Rating: 150 A
• Voltage Rating: 600 V

Whether you’re outfitting a new electrical room, upgrading a service disconnect, or standardizing safety components across facilities, the Square D HLL36150LV combines trusted safety with practical, everyday reliability. Add it to your panel assemblies and training curricula, and give your team a clear, compliant path to safe maintenance workflows.