Square D H361AWK 30A 3P 600V Safety Switch, NEMA 3R, Fusible | AmpState

Meet the Square D H361AWK Safety Switch — a dependable, fusible disconnect engineered for everyday electrical work. Designed for point-of-use isolation, it lets you safely disconnect power to equipment during maintenance or retrofit projects while keeping the same part number for easy stocking and service planning.

This 3-pole, 30-amp, 600-volt device is built with a NEMA 3R enclosure, meaning it’s weather-rated for outdoor or exposed environments where rain, sleet, or dust resistance matters. The fusible design provides inherent overcurrent protection, allowing you to select the appropriate fuses to match your system’s needs.

Why choose the H361AWK for your electrical system

• Reliable point-of-use disconnect: Quickly isolate equipment for safe maintenance without powering down entire panels.
• NEMA 3R enclosure: Weather-resistant housing designed for outdoor installations and exposed locations.
• Fusible protection: Integrated to accommodate fuse-based overcurrent protection, with a 30 A, 3-pole configuration.
• Three-phase, 600V capability: Suitable for motors and three-phase loads up to 600V, offering robust control and protection.
• Consistent part number for retrofit: H361AWK remains the go-to code, simplifying procurement, stock management, and maintenance scheduling.
• AmpState availability: We stock and support this model, and can help verify fit for your specific panel or downstream equipment.

Ideal use cases

Outdoor HVAC units, pump stations, conveyors, and other three-phase equipment often sit behind a disconnect switch. The H361AWK is the practical choice when you need a dedicated, code-compliant safety switch that stands up to the elements while providing predictable disconnect behavior during servicing.

How it stacks up against common alternatives

Compared with non-fusible or non-NEMA-rated switches, the H361AWK adds an immediate fault-current protective path and a weather-rated enclosure, reducing exposure to water, dust, and corrosion. Its fusible design supports selective protection strategies and easier maintenance planning because you can source compatible fuses without changing the control wiring or panel layout.

Practical setup tips

• Plan replacement fuses in the right size and rating for your downstream equipment; keep spares on hand to minimize downtime.
• Ensure the switch is mounted in a location that complies with NEMA 3R outdoor ratings (adequate clearance, proper enclosure orientation).
• Coordinate with your electrical drawings to confirm the 3-pole, 600V capability aligns with your motor starters and upstream protection devices.
• Leverage AmpState’s support to confirm fit if you’re retrofitting an existing installation that uses H361AWK or similar part numbers.

Ready to secure your equipment with a trusted disconnect? AmpState can help confirm fit and get this Square D H361AWK safety switch into your project quickly.