Square D HU361DS - 30A, 600V, 3-Pole, Fusible, Switch

The Square D HU361DS is a rugged three-phase fusible disconnect switch designed for dependable on/off isolation and overcurrent protection in demanding industrial and commercial environments. With a 30A rating and a 600V maximum, this switch is purpose-built for motor disconnects, panelboards, and branch circuits where space is at a premium and reliability is non-negotiable.

Key features that matter in the field

• Three-pole design: simultaneously isolates all three conductors in a 3-phase system for safe maintenance and clear electrical in-rush control.
• Fusible protection: designed to work with compatible fuse links to deliver prompt overcurrent protection right at the disconnect point.
• Compact, maintainable form: a footprint that fits tighter enclosures and panels, with straightforward fuse replacement to minimize downtime.
• Industrial-grade reliability: built to withstand the demands of busy facilities, ensuring consistent operation in HVAC, pumping, conveyors, and machinery setups.

Ideal use cases

Use the HU361DS as a dedicated motor disconnect in equipment rooms, for panelboard protection in control panels, or as a branch circuit protection switch for critical machinery. Its 30A, 600V rating covers a wide range of small-to-mid-size loads, delivering safe isolation during maintenance and facilitating quick, organized protection strategies in electrical distribution layouts.

Why choose this fusible switch

• Localized overcurrent protection at the switchgear level reduces fault propagation and simplifies troubleshooting.
• 3-pole configuration enforces balanced shutdown of all phases, reducing equipment stress during isolation.
• Square D's robust design ensures long service life in busy facilities, with simple maintenance procedures to keep downtime short.

Specifications

• Model: HU361DS
• Amperage: 30A
• Voltage: 600V
• Poles: 3-Pole
• Fused: Fusible

Note: For complete protection, install compatible fuse elements according to your application and local electrical codes. Ensure power is de-energized during installation or maintenance and consult a qualified electrician for proper sizing and safety compliance.