HU363AWK - 100A, Heavy-Duty, Safety Switch, NEMA 3R

Engineered for demanding industrial and commercial environments, the HU363AWK delivers reliable on/off isolation and robust overcurrent protection in a compact, heavy-duty package. Its NEMA 3R enclosure is built to withstand outdoor and challenging indoor conditions, making it a versatile solution for where protection and reliability matter most. As a fusible safety switch, it provides integral protection for electrical circuits while offering straightforward serviceability to minimize downtime.

Key specifications

• Model: HU363AWK
• Amperage: 100A
• NEMA Rating: 3R
• Duty: Heavy

Ideal applications

• Motor disconnects in workshops, facilities, and manufacturing floors
• Panelboards where a compact, maintainable fusible switch is required
• Branch circuit protection for equipment fed from a single point of isolation

What makes this safety switch stand out

• Rugged, heavy-duty construction designed to endure constant use in demanding environments
• NEMA 3R rating provides reliable protection against weather, dust, and debris, suitable for outdoor installations
• Integrated overcurrent protection within a single unit, simplifying wiring and protection strategy
• Compact footprint fits into tight panels, control cabinets, and service enclosures without compromising safety or performance
• Maintenance-friendly design enables straightforward isolation and servicing, helping reduce downtime during routine checks or fuse changes

Practical guidance and use scenarios

• Install in outdoor equipment areas such as pumps, conveyors, and HVAC systems where a reliable disconnect is essential
• Use as a central safety point in panelboards to protect feeder circuits and streamline maintenance procedures
• Pair with compatible control schemes to ensure safe lockout/tagout practices during servicing