Square D QMB325W - Fusible Safety Switch 400A@240V (200kA AIC)

Square D QMB325W is a fusible safety switch designed for industrial power distribution systems requiring high fault current protection. This 3-pole panel-mounted switch handles 400A continuous current at 240V AC with a 200kA interrupting capacity, housed in a NEMA 1-rated enclosure measuring 381mm in depth. The R-class fusible design meets NEMA KS1, CSA, and UL standards for commercial and industrial applications where reliable circuit isolation is critical.

Key Features & Specifications

• Type: Fusible safety switch, panel-mounted, single configuration
• Voltage Rating: 240V AC
• Current Rating: 400A continuous
• Dimensions: 381mm depth
• Standards: NEMA KS1, CSA, UL
• Applications: Industrial power distribution, motor control centers
• Switch Style: Fusible
• Configuration: Single
• Poles: 3
• Wire Size: 3/0 AWG-600KCmil
• AIC Rating: 200kA@240V
• Phase: 3
• NEMA Rating: 1
• Fuse Class: R
• Compatible Frames: ED
• Weight: 39.92 lb

Product Identification

• UPC: 785901766858
• GTIN: 00785901766858