Square D H221N 30A 2P 240V Safety Switch, NEMA 1, Fusible | AmpState

The Square D H221N safety switch is a purpose-built disconnect designed for reliable equipment isolation at the point of use. With a 30 A rating, 2 poles, and 240V operation, it provides a robust solution for industrial circuits that demand dependable shutoff and protection during maintenance.

Designed with retrofit projects in mind, the H221N preserves part-number consistency to minimize downtime and rework when upgrading or servicing legacy equipment. Its NEMA 1 enclosure delivers indoor protection against dust and incidental contact, making it a practical fit for controlled environments like machine rooms, warehouses, and fabrication floors.

Key reasons to choose this fusible safety switch include:

• Fusible design for integrated overcurrent protection and a clear, on-the-spot isolation mechanism
• Two-pole disconnect ensures both hot conductors open simultaneously for safer maintenance
• Indoor-ready NEMA 1 enclosure built to withstand everyday industrial conditions
• Point-of-use isolation simplifies servicing, reduces risk, and supports safer lockout/tagout procedures
• Easy compatibility with Square D systems and existing H221N deployments, aiding seamless replacements

Ideal for applications such as motors, conveyors, pumps, and other industrial equipment where a dependable, fusible disconnect at the point of use is essential. It also helps maintenance teams plan outages without sacrificing equipment protection or compliance.

Technical snapshot:

• Manufacturer: Square D
• Part Number: H221N
• Product Type: Safety Switch
• Amperage: 30 A
• Poles: 2
• Voltage: 240V
• Enclosure: NEMA 1 (indoor)

Available from AmpState, with support to confirm fit and compatibility. If you’re unsure about whether this exact part matches your setup, our team can help verify the replacement path and ensure a smooth retrofit.