Siemens HF365NRA 400A 3P 600V Safety Switch, NEMA 3R | AmpState

Siemens HF365NRA 400A 3P 600V Safety Switch is built for everyday electrical work, delivering reliable equipment disconnect and isolation right at the point of use. With a rugged three-pole design, it handles demanding loads while keeping your system safe and accessible for maintenance, testing, and emergency shutdowns.

Why this safety switch stands out

• High-capacity, compact form. 400 A continuous amperage with a 3-pole configuration supports robust electrical feeds without requiring oversized hardware.
• 600 V rating for versatile installations. Suitable for a range of industrial applications where higher voltage disconnects are required.
• NEMA 3R enclosure. Designed for outdoor and weather-exposed environments, providing dependable protection against rain, ice, and dust while enabling safe point-of-use isolation.
• Direct part-number match. A smart choice for maintenance teams and panel builders who value fast procurement and minimal downtime by stocking exact Siemens HF365NRA replacements.
• Trusted by professionals. A practical solution for service disconnects, equipment isolation, and control-panel integration in demanding industrial settings.

Key specifications at a glance

• Manufacturer: Siemens
• Part Number: HF365NRA
• Product Type: Safety Switch
• Amperage: 400 A
• Poles: 3
• Voltage: 600 V
• Enclosure: NEMA 3R
• Availability: AmpState

Ideal use cases

• Equipment disconnects at the point of use in manufacturing lines, motors, and feeders.
• Outdoor control panels or facilities where weather resistance is essential.
• Spare inventory for maintenance fleets to minimize downtime when a direct part-number match matters.
• Panel-building projects that require a reliable, standardized safety switch with predictable performance.

How it helps you operate smarter

• Faster procurement with a precise Siemens part number reduces ordering guesswork and back-and-forth compatibility checks.
• Clear, robust isolation capability supports safer maintenance, testing, and service activities.
• Weather-ready NEMA 3R construction keeps essential disconnects protected in outdoor or damp environments.

Need help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit.