Square D H225N Disconnect Switch, 400A, 2-Pole, 240V

The Square D H225N Disconnect Switch is engineered for industrial service, maintenance, and replacement projects where safe, reliable power isolation is essential. With a 400 A rating and a compact 2-pole design, this 240 V disconnect switch is built to handle demanding industrial circuits while keeping technicians protected during servicing.

Key specifications

• Amperage: 400 A
• Poles: 2
• Voltage: 240 V
• Part number: H225N
• Product type: Disconnect Switch

Why the H225N stands out

Designed by Square D for demanding environments, the H225N provides a straightforward, reliable means of isolating power to protect workers and equipment. The two-pole configuration ensures effective de-energization across both conductors, simplifying safe lockout/tagout procedures during maintenance and repairs. Use this switch as a robust solution for service entrances, machine panels, or feeder disconnections where 240 V circuits require solid isolation at up to 400 A.

Compatibility and fit

Before purchasing, verify fit by the part number and your application requirements. The H225N is specified for 400 A, 2-pole, 240 V service. If you’re unsure about compatibility with your equipment or panel, message us and we’ll help confirm alignment with your electrical system and mounting needs.

Ideal use cases

• Industrial maintenance shutdowns where technicians need a clean, verifiable power disconnect
• Replacement projects replacing older disconnects with a modern 240 V, 400 A solution
• Emergency isolation for high-demand equipment feeders in manufacturing facilities
• Panel servicing and routine servicing of large electrical enclosures requiring reliable 2-pole isolation

Practical considerations

Plan for proper wiring and mounting space to accommodate the 400 A, 2-pole configuration. Ensure compatibility with your enclosure, conductor sizes, and protective devices per applicable electrical standards. If you need help confirming compatibility with your current setup, reach out—we’re happy to assist with the part-number-based verification for risk-free procurement.