Square D QMB263M - Fusible Safety Switch 600V/100A (200kA AIC @480V)

Square D QMB263M is a fusible safety switch designed for industrial power distribution protection. This panel-mounted unit features a 600V AC rating with 100A current capacity and 200kA interrupting rating at 480V, housed in a NEMA 1 enclosure weighing 30 lb. The single-configuration, 2-pole switch accepts R, H, and K-class fuses and complies with industrial safety standards for electrical disconnection. Typical applications include motor control centers, machinery disconnects, and power distribution panels requiring ED frame compatibility.

Key Features & Specifications

• Type: Fusible safety switch, panel mount
• Voltage Rating: 600V AC
• Current Rating: 100A
• Configuration: Single
• Poles: 2
• AIC Rating: 200kA@480V
• Fuse Class: R, H, K
• NEMA Rating: 1
• Phase: 1
• Compatible Frames: ED
• Weight: 30 lb
• Switch Style: Fusible
• Family: QMB Series D2