Siemens HF363NR - 100A, 600V, 3-Phase, Heavy-Duty, Safety Switch

The Siemens HF363NR is a purpose-built safety switch engineered for demanding industrial and commercial environments. With 100A capacity, 600V rating, and 3-phase operation, this heavy-duty disconnect provides reliable on/off isolation and robust overcurrent protection when you need to safeguard motors, panels, and branch circuits.

What makes the HF363NR unique

• High-capacity, compact design: 100A at 600V in a space-conscious package simplifies installation in crowded electrical rooms or control panels without sacrificing protection.
• Three-phase reliability: Perfect for industrial AC motors and multi-line equipment, delivering coordinated protection across all phases.
• Heavy-duty performance: Built to endure frequent switching, harsh environments, and continuous operation typical of commercial and industrial duty cycles.
• On/off isolation with overcurrent protection: Provides a clear disconnect path for servicing while guarding downstream circuits from overloads and faults.
• Maintenance-friendly fusible switch design: Supports straightforward maintenance and component replacement, helping minimize downtime.

Ideal use cases

• Motor disconnects in production lines, pumps, and fans where quick, safe isolation is critical during maintenance or fault conditions.
• Panelboards where centralized safety and control of branch circuits are required.
• Industrial and commercial installations that demand a compact yet capable safety switch to protect personnel and equipment.

How this safety switch improves safety and uptime

By delivering dependable isolation paired with overcurrent protection, the HF363NR helps prevent electrical faults from spreading, enables safe servicing of energized equipment, and reduces unplanned downtime. Its rugged construction is designed to withstand demanding environments, ensuring long-term performance and predictable protection for your electrical system.

Key specifications at a glance

Model: HF363NR
Amperage: 100A
Voltage: 600V
Phase: 3-Phase
Duty: Heavy

Choose the Siemens HF363NR when you need a reliable, compact, heavy-duty safety switch that delivers precise isolation and dependable protection for motor loads, panelboards, and branch circuits in challenging industrial settings.