Square D HU366R - Non-Fusible Safety Switch 600A 600V AC (NEMA 3R, 200kA AIC)

Square D HU366R is a heavy-duty industrial disconnect switch designed for safe electrical isolation in high-power applications. This non-fusible safety switch operates at 600V AC with a 600A current rating, providing reliable circuit interruption for three-phase systems. The robust NEMA 3R enclosure measures 27.88 x 10.13 x 50.31 inches (WxDxH) and weighs 76.2 lb, constructed for demanding industrial environments. UL listed certification ensures compliance with industry safety standards, while the 200kA interrupting rating at 600V delivers superior fault protection. Typical applications include industrial machinery, manufacturing equipment, and power distribution systems requiring secure isolation capabilities.

Key Features & Specifications

• Type: Non-fusible safety disconnect switch, Series E family
• Voltage Rating: 600V AC
• Current Rating: 600A
• Dimensions: 27.88 in x 10.13 in x 50.31 in (WxDxH)
• Standards: UL listed, NEMA 3R rated
• Applications: Industrial machinery, power distribution systems, manufacturing equipment
• Switch Type: Safety disconnect
• Configuration: Single
• Phase: 3
• Poles: 3
• AIC rating: 200kA@600V
• Protection: Electrical isolation and circuit interruption
• Nema Rating: NEMA 3R
• Compatible Frames: ED
• Weight: 76.2 lb
• Country of Origin: Mexico

Product Identification

• UPC: 785901452164
• GTIN: 00785901452164