Square D H224NRB 200A 2P 240V Safety Switch, NEMA 3R, Fusible | AmpState

Square D H224NRB is a rugged safety switch engineered for dependable equipment disconnect and isolation at the point of use. With a 200 A rating, 2 poles, and 240 V operation, this fusible unit delivers clear, fast fault protection while keeping your electrical system simple and compliant.

Designed to handle outdoor or damp environments, the NEMA 3R enclosure protects sensitive components from weather and vandalism, so maintenance crews can trust reliable performance year after year. The fusible design provides precise protection and predictable disconnection in fault conditions, helping you coordinate protection schemes and minimize downtime.

• Replacement-ready: ideal for replacement projects and stocking spares to preserve BOM alignment with the original part number.
• Certified reliability: manufactured by Square D, a trusted name in industrial electrical safety and control solutions.
• Easy procurement: available from AmpState, with assistance to confirm fit and compatibility if you’re matching a legacy system.

Where this safety switch shines

• Equipment disconnect at the point of use for motors, pumps, conveyors, and HVAC components in manufacturing, warehousing, and outdoor installations.
• Situations where a rugged, weather-resistant safety switch is required to maintain safe isolation during maintenance or service work.
• Projects that demand tight BOM control to ensure repairs or expansions stay consistent with existing equipment.

Technical snapshot

• Part number: H224NRB
• Manufacturer: Square D
• Amperage: 200 A
• Poles: 2
• Voltage: 240 V
• Enclosure rating: NEMA 3R (for outdoor/damp locations)
• Design: Fusible safety switch

If you’re aligning a legacy BOM or need a precise fit for an existing installation, AmpState can help verify compatibility. Need help matching a part number or confirming fit? Message us and we’ll assist you in validating the correct part for your system.