Square D QMB321TJ - Fusible Safety Switch 30A 3-Pole (200kA AIC @240V)

Square D QMB321TJ is a fusible safety switch designed for industrial power distribution protection. This 3-pole, 30A panel-mount switch features a 240V AC rating with a 200kA interrupting capacity at 240V, housed in a NEMA 1-rated enclosure for indoor use. The dual/twin configuration with Class J fuses provides reliable circuit isolation in ED frame-compatible installations. UL-listed and compliant with industrial safety standards, it's engineered for three-phase motor control and heavy equipment power management applications.

Key Features & Specifications

• Type: Fusible safety switch, panel mount, QMB Series D2
• Voltage Rating: 240V AC
• Current Rating: 30A
• Configuration: Dual/Twin
• Poles: 3
• Phase: 3-phase
• AIC Rating: 200kA@240V
• Fuse Class: J
• NEMA Rating: 1
• Compatible Frames: ED
• Switch Style: Fusible
• Weight: 30 lb
• Standards: UL listed
• Applications: Industrial power distribution, motor control centers