Square D QMB366W - Fusible Disconnect Switch 600A (200kA AIC @480V)

Square D QMB366W is a fusible safety disconnect switch designed for industrial power distribution protection. This 600A-rated switch handles 600V AC/250V DC systems with a 200kA interrupting capacity at 480V, featuring a rugged NEMA 1 enclosure for harsh environments. Its three-pole single-configuration design with Class R fuse compatibility meets NEMA KS1, UL, and CSA safety standards. The 381mm deep unit (39.92 lb) is engineered for three-phase applications in manufacturing facilities and heavy machinery power control.

Key Features & Specifications

• Type: Fusible safety disconnect switch with NEMA 1 enclosure
• Voltage Rating: 600V AC / 250V DC
• Current Rating: 600A
• Dimensions: 381mm depth
• Standards: NEMA KS1, UL, CSA
• Applications: Industrial power distribution, heavy machinery
• Switch Style: Fusible
• Configuration: Single
• Poles: 3
• Phase: 3
• AIC Rating: 200kA@480V
• Fuse Class: R
• Weight: 39.92 lb
• Certification: NEMA KS1, UL, CSA
• Compatible Frames: ED
• NEMA Rating: 1

Product Identification

• UPC: 785901766995
• GTIN: 00785901766995