Square D QMB365W - Fusible Safety Switch 400A 600V (200kA AIC @480V)

Square D QMB365W is a fusible safety switch designed for industrial power distribution systems requiring high-interrupting capacity protection. This 600V-rated switch delivers 400A current handling with a 200kA AIC rating at 480V for robust short-circuit protection in three-phase applications. The NEMA 1-rated enclosure measures 229 x 112.78 x 78.49 mm (HxWxD) and features Class R fuse compatibility with a 39.54 lb rugged metal construction. Certified to NEMA KS1 standards, it's engineered for commercial and industrial facilities requiring ED frame-compatible disconnect solutions in panel-mounted configurations.

Key Features & Specifications

• Type: Fusible safety switch, QMB Series E1-E2, panel mount
• Voltage Rating: 600V AC
• Current Rating: 400A
• Dimensions: 229 x 112.78 x 78.49 mm (HxWxD)
• Standards: NEMA KS1, NEMA 1 enclosure rating
• Applications: Industrial power distribution, commercial facilities
• Configuration: Single
• Poles: 3
• AIC rating: 200kA@480V
• Fuse Class: R
• Phase: 3
• Weight: 39.54 lb
• Compatible Frames: ED
• Country of Origin: United States

Product Identification

• UPC: 785901766872
• GTIN: 00785901766872