Square D H321NRB - 30A, 240V, Disconnect Switch

The Square D H321NRB 30A 240V Disconnect Switch is engineered to deliver safe, reliable electrical isolation in busy industrial and commercial environments. Its design supports proper lockout/tagout procedures and provides dependable disconnection under load, helping teams reduce downtime and improve safety during maintenance.

Key specifications

• Amperage rating: 30 A
• Voltage rating: 240 V
• Product type: Disconnect Switch
• Brand: Square D
• Model: H321NRB

What sets the H321NRB apart

• Lockout/tagout readiness: designed to support safe, compliant power isolation during servicing
• Reliable under load: ensures a clean, decisive disconnect even when circuits are energized
• Durable construction for long-term use: built to withstand demanding industrial environments
• Simple integration: compatible with standard electrical systems requiring 240 V, 30 A circuits

Ideal use cases

• Maintenance shutdowns on factory machines and equipment
• Electrical rooms or panel isolation in commercial facilities
• Site outages or service tasks where secure power control is essential

Practical safety and performance tips

• Always follow your site's lockout/tagout procedures and verify zero energy before servicing with the disconnect switch in the open position
• Coordinate de-energization with planned maintenance to minimize downtime
• Use in conjunction with appropriate protective enclosures and standard wiring practices for best results

Whether upgrading an existing panel or equipping new equipment, the Square D H321NRB offers a trusted solution for clean, safe power control.