Siemens HF362NR-B399 - 60A, 600V, Safety Switch, NEMA 3R

Siemens HF362NR-B399 is a rugged safety switch engineered for dependable on/off isolation and overcurrent protection in demanding industrial and commercial environments. Rated at 60A and 600V, this NEMA 3R configuration is built to withstand outdoor exposure while delivering reliable performance where safety and uptime matter most.

Why this safety switch stands out

• 60 Amp, 600 Volt capacity: Handles the electrical demands of motor loads and feeders with a clear, decisive disconnect when service is required.
• NEMA 3R weatherproof enclosure: Designed to endure rain, snow, and dust, making it suitable for outdoor equipment rooms, loading docks, and exterior installations.
• Integrated fusible switch for overcurrent protection: Combines protective fusing with isolation in a single unit, reducing parts and simplifying wiring.
• Compact, maintainable design: Streamlined footprint and easy access for fuse replacement and routine maintenance, helping minimize downtime.
• Versatile installation for motor disconnects and branch circuits: Ideal where compact protection and reliable isolation are required in panelboards and feeder circuits.

Ideal use cases

Project scenarios where the HF362NR-B399 shines include motor control stations on manufacturing lines, outdoor pump or HVAC installations, and building service panels where a compact, reliable disconnect and protective switch is needed. It’s particularly valuable in environments where space is at a premium and weather exposure is a concern.

How it helps your operation

• Protects personnel and equipment by providing a clear, safe point of isolation for maintenance or emergency shutdowns.
• Prevents cascading faults by delivering fast, predictable overcurrent protection at the feeder level.
• Reduces installation complexity by combining disconnection and protection in one durable unit.

What you’re getting

The Siemens HF362NR-B399 is a 60A, 600V safety switch with a NEMA 3R rating, designed for motor disconnects, panelboards, and branch circuits where a compact, maintainable fusible switch is required. Built on Siemens’ engineering, it brings reliability, serviceability, and a proven safety profile to your electrical distribution strategy.