Square D H361 - 30A, 600V, 3-Pole, Fused Disconnect Switch

The Square D H361 is a purpose-built fused disconnect switch designed for serious industrial and commercial environments that demand safe, reliable electrical isolation. With a dedicated 3-pole configuration, this unit supports 3-phase systems while delivering dependable disconnection under load and robust long‑term durability. It’s the practical, field-tested solution you install when safety and continuous operation matter most.

• 3-Pole, 30A, 600V rating — ideal for standard 3‑phase feeders and machinery circuits, providing clear, deliberate isolation for each phase.
• Fused protection — integrated fuses interrupt overcurrent and short-circuit currents, safeguarding downstream equipment and wiring while enabling quick authentication of fault conditions.
• Safe lockout/tagout compatibility — engineered to support proper lockout/tagout procedures, helping maintenance teams prevent accidental re-energization during servicing.
• Reliable under-load disconnection — designed to shut off power cleanly even when equipment is running, reducing arcing risk and improving worker safety during shutdowns.
• Industrial-grade durability — built to withstand demanding environments, delivering consistent performance over time in control panels, switchgear housings, and service disconnects.

Ideal use cases

Use the Square D H361 to isolate large motors, conveyors, pumps, and other critical loads in manufacturing floors, processing plants, and commercial facilities. It’s well-suited for primary service disconnects, machine isolation points, and anywhere a clearly defined, fuse-protected disconnect is required to meet safety codes and maintenance needs.

Why this fused disconnect stands out

Compared with non-fused disconnects, the H361 provides an added layer of fault protection directly at the point of isolation. The 3-pole design ensures coordinated phase control for 3-phase systems, while the fuse element limits damage from overloads, helping downstream components and circuits survive unexpected faults. And with lockout/tagout readiness, teams can perform maintenance without compromising safety.

Practical setup and care

Plan around standard 3-phase distribution layouts and ensure fuse selection aligns with system conductors and protection strategy. Regularly inspect fuse status and enclosure integrity, keeping the disconnect accessible for quick shutdowns when routine service or emergency responses are needed. Adhere to your site safety protocols and local electrical codes to maximize protection and uptime.

The Square D H361 delivers a focused, field-tested solution for facilities that require dependable isolation, robust fault protection, and safety-conscious operation in a compact, 3-pole form factor. If you’re equipping a 3-phase system where reliable disconnection under load and straightforward lockout/tagout are non-negotiable, this is the fused disconnect switch to trust.