Square D QMB325MW - Fusible Disconnect Switch 400A@240V (200kA AIC)

Square D QMB325MW is a fusible panel-mounted disconnect switch designed for industrial power distribution systems requiring high-current protection. The unit features a 240V AC voltage rating with a 400A current capacity and 200kA AIC rating at 240V for robust short-circuit protection. Its compact enclosure measures 58.4mm (D) x 47.1mm (W) x 35.3mm (H) with a 70 lb weight, constructed with UL-listed components meeting NEMA 1 standards. The three-phase switch employs Class R fuses in a single-configuration design, compatible with HHED frames for industrial panel integration. Typical applications include motor control centers, heavy machinery, and high-capacity electrical distribution systems requiring reliable circuit isolation.

Key Features & Specifications

• Type: Fusible disconnect switch, panel-mounted, Class R fuse protection
• Voltage Rating: 240V AC
• Current Rating: 400A
• Dimensions: 58.4mm (D) x 47.1mm (W) x 35.3mm (H)
• Standards: UL LISTED, NEMA 1
• Applications: Industrial power distribution, motor control centers
• Switch Style: Fusible
• Configuration: Single
• Poles: 3
• AIC Rating: 200kA@240V
• Phase: 3
• Fuse Class: R
• Compatible Frames: HHED
• Weight: 70 lb
• Country of Origin: United States

Product Identification

• UPC: 785901766896
• GTIN: 00785901766896