Square D H364 200A 3P 600V Safety Switch, NEMA 1, Fusible | AmpState

Square D H364 is a 200 A, 3-pole, 600 V safety switch designed for equipment disconnect and isolation at the point of use. With a NEMA 1 enclosure, it delivers reliable indoor protection where quick shutdown and safe maintenance are essential.

From a trusted name in industrial electrics, the H364 combines robust safety features with a compact, installer-friendly form factor. The fusible design means overcurrent protection is integrated, simplifying panel layouts and reducing the number of separate components your team must manage on site.

Key specifications

• Amperage: 200 A
• Poles: 3
• Voltage: 600 V
• Enclosure: NEMA 1
• Type: Fusible safety switch
• Part Number: H364
• Manufacturer: Square D
• Availability: AmpState

What makes this switch stand out

This fusible safety switch is purpose-built for reliability in industrial environments. The 3-pole configuration provides solid three-phase isolation, while the integrated fusible protection supports predictable fault response. With a 600V rating, it’s compatible with a wide range of motors, drives, and control circuits, helping you streamline inventory and speed up maintenance workflows.

Ideal use cases

• Equipment disconnects at the point of use, enabling safe maintenance without affecting other circuits.
• Panel builds and retrofits requiring a precise, part-number-minned solution for 200 A, 3P, 600 V applications.
• Spare inventory for quick replacements to minimize downtime and keep production moving.

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