Square D QMB3603H - Fusible Safety Switch 600VAC 30A (3-Pole NEMA 1)

Square D QMB3603H is a fusible safety switch designed for industrial power distribution protection. This 600VAC-rated panel-mount switch delivers 30A current capacity with a 200kA interrupting rating at 480V, housed in a NEMA 1 enclosure weighing 38 lb. The three-pole single-configuration unit features R/H/K-class fuse compatibility and integrates with HHED frames per industry standards. Typical applications include motor control centers and heavy machinery power isolation.

Key Features & Specifications

• Type: QMB Saflex fusible safety switch
• Voltage Rating: 600V AC
• Current Rating: 30A
• Configuration: Single
• Poles: 3
• Phase: 3
• AIC Rating: 200kA@480V
• Fuse Class: R, H, K
• NEMA Rating: 1
• Switch Style: Fusible
• Compatible Frames: HHED
• Weight: 38 lb
• Standards: UL/cUL listed
• Applications: Industrial power distribution, motor control centers