Square D HU364AWK - 200A, 600V, Heavy-Duty, Safety Switch

The Square D HU364AWK is a 200A, 600V heavy-duty safety switch built to deliver dependable on/off isolation and robust overcurrent protection in demanding industrial and commercial environments. This model combines a compact, maintainable fusible design with rugged reliability, making it a smart choice for motor disconnects, panelboards, and branch circuit protection where space and serviceability matter.

• 200 Amp, 600 Volt capacity: Designed to handle substantial motor loads and feeder circuits, providing clear, reliable isolation when maintenance or emergency shutdown is required.
• Heavy-duty construction: Built to withstand the demands of busy electrical rooms and high-use installations, delivering consistent performance over time.
• Safe isolation for maintenance: Enables precise de-energization of critical equipment, supporting safe servicing, testing, and preventive maintenance programs.
• Overcurrent protection with fusible design: Integrates protective switching to help guard downstream equipment and wiring from faults, aligning with standard protection schemes in industrial facilities.
• Compact footprint with straightforward maintenance: Fits into tight spaces without sacrificing protection or accessibility, and is designed for easier inspection, replacement, and servicing by technicians.
• Versatile application: Ideal for motor disconnects, panelboard feeders, and branch circuits in factories, warehouses, processing plants, and large commercial spaces.

Who benefits from the HU364AWK

Facilities with sizable motors, conveyors, pumps, or processing lines will appreciate the dependable isolation and protection this switch provides. Electrical contractors value its straightforward maintenance and clear disconnection points, while facility managers rely on its durable design to minimize downtime during routine servicing.

Practical scenarios you’ll use this for

• Isolating a large motor or pump for scheduled maintenance without affecting other circuits.
• Emergency shutdown for a controlled, safe stop of heavy equipment in busy production lines.
• Serving as a dedicated disconnect for panelboard feeders, providing a centralized protection point.

Why choose this capability over alternatives

Compared to smaller or less robust switches, the HU364AWK offers a higher amperage rating with a sturdy, maintainable design that keeps critical lines protected while simplifying service. Its fusible switch architecture provides a clear protection path for faults, helping minimize damage in the event of an electrical fault and supporting reliable, long-term operation in environments where downtime is costly.

Tips for getting the most from your HU364AWK

• Plan for routine inspection of terminations and enclosure integrity to ensure continued safe operation.
• Pair with appropriate fusing strategies to match your load profile and protection requirements.
• Follow proper lockout/tagout procedures during maintenance to maximize safety for technicians.