Square D QMB221TW is a panel-mounted fusible safety switch designed for providing reliable circuit protection and isolation in industrial applications. It features a 240V AC voltage rating and a 30A current rating, housed in a robust NEMA 1 enclosure measuring 114 mm H x 112.78 mm W x 78.49 mm D and weighing 16.2 lb. The switch is UL and CSA certified and offers a high 200kA interrupting capacity at 240V for enhanced safety. Its dual/twin configuration with two poles makes it suitable for protecting single-phase circuits in machinery, HVAC systems, and industrial control panels.
Key Features & Specifications
Type: Panel-mounted, fusible safety switch, QMB Series E1-E2
Voltage Rating: 240V AC
Current Rating: 30A
Dimensions: 114 mm H x 112.78 mm W x 78.49 mm D (4.49 in x 4.44 in x 3.09 in)
Weight: 16.2 lb
Standards: UL, CSA certified
Applications: Circuit protection and isolation for industrial machinery, HVAC, and control panels