The Schneider Electric Square D QMB221TW is a 2-pole, 30-ampere, 240-volt AC switch designed for reliable circuit control within panelboards and switchboards. This single-phase switch is engineered to safely disconnect loads from their power source, ensuring operational safety and maintenance accessibility in various industrial electrical distribution systems. Its robust construction is suitable for demanding environments.

Technical details

• Series: Square D QMB
• Number of Poles: 2
• Amperage Rating: 30 A
• Voltage Rating: 240 V AC
• Phase: Single-phase
• NEMA Rating: 1 (General Purpose Indoor Use)
• Configuration: Load-side disconnect switch
• Terminal Type: Screw terminals (verify specific terminal size and type against manufacturer datasheet)

Applications & compatibility

This QMB221TW switch is commonly utilized in commercial and industrial electrical distribution systems, including manufacturing facilities, building management systems, and power distribution panels. It serves as a critical component for isolating circuits during maintenance, troubleshooting, or emergency shutdown procedures on machinery and equipment.

Available from Industrial Automation Co as new, refurbished, or surplus stock, backed by a 2-year warranty with same-day shipping on in-stock items. Request a quote for the Schneider Electric Square D QMB221TW or contact our technical team for cross-reference assistance with compatible Square D components.