Siemens HNF363 - 100A, 600V, 3-Pole, Heavy-Duty, Safety Switch

Siemens HNF363 Safety Switch is a rugged, ready-to-isolate safety solution engineered for reliability in tough industrial and commercial settings. With a 100 A rating, a 600 V maximum, and a 3-pole configuration, this heavy-duty safety disconnect delivers dependable on/off isolation and robust overcurrent protection where it matters most.

Designed for motor disconnects, panelboards, and branch circuit protection, the HNF363 brings a compact footprint and straightforward maintenance to demanding electrical installations. This makes it an ideal choice when you need a durable safety switch that slides neatly into tight spaces while delivering uncompromised performance.

Key advantages

• Three-pole isolation provides complete circuit shutdown, ensuring safe servicing and reliable protection for downstream devices.
• 100 A nominal rating handles mid-sized motors, fans, and feeders without overheating or nuisance trips.
• 600 V voltage rating supports a broad range of industrial equipment and control circuits.
• Heavy-duty construction designed to endure challenging environments—vibration, dust, and frequent switch operations.
• Compact, maintainable design simplifies panelboard integration and reduces cabinet depth, streamlining installation and future maintenance.

Ideal use cases

• Motor disconnects on conveyors, pumps, fans, and other industrial machinery
• Panelboards and feeder circuits requiring reliable, easy-to-operate isolation
• Retrofit or replacement in existing electrical racks where a rugged safety switch is needed

Why choose the Siemens HNF363? Because it pairs trusted Siemens engineering with a practical, hands-on disconnect switch that keeps downtime to a minimum and maintenance straightforward. By delivering clear isolation, dependable protection, and a compact form factor, it helps your electrical system stay safe, organized, and compliant during servicing and routine operation.

Specifications at a glance

• Model: HNF363
• Amperage: 100 A
• Voltage: 600 V
• Poles: 3-Pole
• Duty: Heavy