Siemens HF367NR 800A 3P 600V Safety Switch, NEMA 3R, Fusible | AmpState

Meet the Siemens HF367NR 800A 3P 600V Safety Switch — a purpose-built equipment disconnect and isolation solution designed for everyday electrical work. With a NEMA 3R enclosure and fusible protection, this switch is ready for outdoor or semi-exposed installations at the point of use, delivering reliable power control where it matters most.

Key specifications

• Amperage: 800 A
• Poles: 3
• Voltage: 600 V
• Enclosure: NEMA 3R (weather-rated, suitable for outdoor environments)
• Fusible: Yes (integrates with a fuse protection scheme; requires compatible fuses)
• Manufacturer: Siemens
• Part number: HF367NR

Why this safety switch matters

The HF367NR is designed for equipment disconnect and isolation at the point of use, making maintenance and servicing safer and faster. The 3-pole, 800A rating supports heavy-duty loads common in industrial applications, while the 600V specification covers a wide range of control circuits and feeders. A NEMA 3R enclosure ensures reliable operation in outdoor or semi-exposed installations, protecting components from weather and corrosion.

Who should consider it

• Maintenance teams needing a dependable, code-aligned disconnect at the equipment level
• Panel builders assembling control enclosures or switchgear assemblies
• Inventory managers stocking a direct part-number match for quick replacements

Practical benefits and use cases

• Safe, immediate isolation for servicing electrical equipment, reducing exposure during maintenance and enabling effective lockout/tagout procedures
• Durable, outdoor-ready design with NEMA 3R protection for campuses, outdoor machines, and weather-prone installations
• Integrated fusible protection adds an extra layer of fault mitigation, helping to prevent fault propagation and align with your upstream protection scheme
• Versatile for high-demand systems such as motor control centers, feeders, and large control panels that require a robust, direct-part-number replacement

Compatibility, support, and availability

Need help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit. AmpState offers the Siemens HF367NR and can assist with fast shipping, ordering details, and any specialty needs.

Incorporate the Siemens HF367NR 800A 3P 600V Safety Switch into your control architecture to achieve reliable isolation, streamlined maintenance workflows, and durable performance in demanding environments. This is a practical, code-ready solution for panel builders, maintenance crews, and facilities that value precision and reliability at the point of use.