Square D QMB263 - Fusible Safety Switch 600V/100A (200kA AIC @480V)

Square D QMB263 is a panel-mounted fusible safety switch designed for industrial circuit protection and isolation. This single-configuration switch 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 QMB Series D2 unit complies with industry standards for fusible disconnects, offering two-pole protection for single-phase systems using R, H, or K class fuses. Its HED frame compatibility makes it suitable for motor control centers, industrial machinery, and power distribution panels requiring reliable overcurrent protection.

Key Features & Specifications

• Type: Fusible safety switch, panel mount, QMB Series D2
• Voltage Rating: 600V AC
• Current Rating: 100A
• Configuration: Single
• Poles: 2
• Phase: 1
• AIC rating: 200kA@480V
• Fuse Class: R, H, K
• NEMA Rating: 1
• Compatible Frames: HED
• Weight: 30 lb
• Switch Style: Fusible
• Standards: Industrial safety switch requirements
• Applications: Motor control centers, industrial equipment, power distribution