Square D H366N - Fusible Safety Switch 600A (200kA AIC @ 600V)

Square D H366N is a heavy-duty fusible safety switch designed for reliable circuit isolation and protection in industrial power distribution systems. This 600A rated disconnect switch operates at 600V AC with a 200kA interrupting capacity, providing robust short-circuit protection when used with Class R fuses. The unit features a rugged NEMA 1 enclosure measuring 27.63" x 10.13" x 50.25" (WxDxH) and weighs 79.38 pounds, constructed for demanding industrial environments. UL listed certification ensures compliance with industry safety standards, while the three-pole configuration accommodates 500 kcmil copper or 3/0 aluminum conductors. Typical applications include main service disconnects, motor control center isolation, and industrial machinery power distribution where visible circuit interruption is required.

Key Features & Specifications

• Type: H-series fusible safety switch with visible blade operation
• Voltage Rating: 600V AC
• Current Rating: 600A
• Dimensions: 27.63 in x 10.13 in x 50.25 in (WxDxH)
• Standards: UL listed
• Applications: Industrial power distribution, motor control isolation, main service disconnects
• Switch Type: Safety disconnect
• Configuration: Single
• Poles: 3
• Phase: 3
• AIC rating: 200kA@600V
• Wire Size: 500 kcmil (Copper) AWG 3/0 (Aluminium)
• Fuse Class: R
• Nema Rating: NEMA 1
• Weight: 79.38 lb
• Family: Series E
• Country of Origin: Mexico

Product Identification

• UPC: 785901451990
• GTIN: 00785901451990