Square D QMB2640J - Fusible Safety Switch 400A@600V (200kA AIC)

Square D QMB2640J is a panel-mounted fusible safety switch designed for industrial power distribution systems requiring high fault current protection. This 600V AC-rated switch features a 400A current capacity with a 200kA interrupting rating at 480V, housed in a NEMA 1 enclosure weighing 65 lb for rugged applications. The single-configuration, 2-pole design complies with industry standards for fusible disconnect switches and integrates with ED frame panels. Typical applications include motor control centers, HVAC systems, and heavy machinery power isolation.

Key Features & Specifications

• Type: QMB Saflex fusible safety switch, panel mount
• Voltage Rating: 600V AC
• Current Rating: 400A
• Dimensions: NEMA 1 enclosure (specific dimensions not provided)
• Standards: Industrial safety switch compliance
• Applications: Motor control centers, industrial power distribution
• Switch Type: Fusible
• Configuration: Single
• Poles: 2
• AIC rating: 200kA@480V
• Phase: 1
• Fuse Class: J
• Compatible Frames: ED
• Weight: 65 lb