Square D QMB322HW - Fusible Safety Switch 60A 240V (3-Pole NEMA 1)

Square D QMB322HW is a fusible safety switch designed for reliable circuit protection and isolation in industrial applications. This 3-pole disconnect switch operates at 240V AC with a 60A current rating and features a robust 200kA interrupting capacity at 240V for superior short-circuit protection. The unit measures 114mm x 78.49mm x 112.78mm (4.49" x 3.09" x 4.44") and weighs 30 lb, constructed with NEMA 1 enclosure rating for indoor use. It carries UL and CSA certifications and accommodates Class R, H, and K fuses for flexible protection schemes. Typical applications include motor control centers, industrial machinery, and power distribution systems requiring safe maintenance isolation.

Key Features & Specifications

• Type: Fusible safety disconnect switch, QMB Series E1-E2
• Voltage Rating: 240V AC
• Current Rating: 60A
• Dimensions: 114mm x 78.49mm x 112.78mm (4.49" x 3.09" x 4.44")
• Standards: UL, CSA certified
• Applications: Industrial power distribution, motor control centers, machinery isolation
• Switch Type: Fusible
• Configuration: Single
• Poles: 3
• Phase: 3
• AIC Rating: 200kA@240V
• Wire Size: 12 to 2 AWG Aluminum, 14 to 4 AWG Copper
• Fuse Class: R, H, K
• NEMA Rating: 1
• Compatible Frames: NSX
• Weight: 30 lb

Product Identification

• UPC: 785901748076
• GTIN: 00785901748076