Square D QMB263TJ - Fusible Safety Switch 600V/100A (200kA AIC @480V)

Square D QMB263TJ is a fusible safety switch designed for industrial power distribution protection. This panel-mounted unit features a 600V AC rating and 100A current capacity with a 200kA interrupting rating at 480V, housed in a NEMA 1 enclosure for basic indoor protection. The dual-pole configuration with Class J fuses meets industry standards for circuit isolation and overload protection in commercial/industrial environments. Its 30 lb steel construction integrates with ED frame panels for secure power management in manufacturing facilities, data centers, and mechanical rooms.

Key Features & Specifications

• Type: Fusible safety switch, panel mount, QMB Series D2
• Voltage Rating: 600V AC
• Current Rating: 100A
• Configuration: Dual/Twin
• Poles: 2
• AIC Rating: 200kA@480V
• Fuse Class: J
• NEMA Rating: 1
• Phase: 1
• Compatible Frames: ED
• Weight: 30 lb
• Standards: UL/cUL listed
• Applications: Motor control centers, HVAC systems, industrial machinery