Square D QMB368MW - Fusible Safety Switch 600V/1200A (3-Pole NEMA 1)

Square D QMB368MW is a fusible safety switch designed for high-current industrial power distribution systems. This 3-pole panel-mounted switch features a 600V AC rating with 1200A current capacity and 200kA interrupting rating at 480V, housed in a NEMA 1 enclosure for basic indoor protection. The rugged construction includes R-class fuse compatibility and ED frame mounting, weighing 125 lb for stable installation. Compliant with industrial safety standards, it serves critical applications in manufacturing plants, data centers, and heavy machinery power control.

Key Features & Specifications

• Type: Fusible safety switch, panel mount, QMB Series E1-E2
• Voltage Rating: 600V AC
• Current Rating: 1200A
• Configuration: Single, 3-pole
• Standards: NEMA 1 enclosure rating
• Applications: Industrial power distribution, motor control centers
• AIC rating: 200kA@480V
• Phase: 3
• Fuse Class: R
• Compatible Frames: ED
• Weight: 125 lb