Siemens HNF363S - 100A, 600V, 3-Pole, 3-Phase, Safety Switch, NEMA 4

Introducing the Siemens HNF363S - 100A, 600V, 3-Pole, 3-Phase Safety Switch, NEMA 4—a robust safety disconnect designed to deliver reliable on/off isolation and overcurrent protection in demanding industrial and commercial environments.

Whether you’re protecting a motor, panelboard, or branch circuit, this 3-pole, 3-phase fusible switch provides a compact, maintainable solution built for tough conditions. Its NEMA 4 enclosure stands up to outdoor exposure, dust, and washdown environments, keeping critical equipment protected where reliability matters most.

• Current rating: 100 A with a 600 V maximum operating voltage, suitable for motors, pumps, conveyors, and other heavy-duty loads.
• Three-pole, three-phase configuration ensures complete, clean isolation of all lines for safe startup, shutdown, and maintenance.
• Rugged NEMA 4 enclosure provides dependable protection in harsh environments—indoors, outdoors, or in washdown areas.
• Fusible switch design enables tailored overcurrent protection and coordination with your system’s protection scheme, supporting efficient fuse changes and downtime reduction.
• Front-access design and durable construction support straightforward servicing and safe lockout/tagout practices during maintenance.

Ideal use cases include motor disconnects for conveyors and industrial machinery, protection and isolation for compact panelboards in limited electrical spaces, and branch circuit protection for outdoor equipment where reliable, space-conscious switching is essential.

Technical snapshot — Model: HNF363S • Amperage: 100 A • Voltage: 600 V • Poles: 3-Pole • Phase: 3-Phase • NEMA Rating: 4

Choosing Siemens means aligning with a trusted, purpose-built protection solution that integrates with broader electrical and control systems, delivering dependable performance and streamlined maintenance for the long run.