Square D H321DS - Fusible Disconnect Switch 30A 3-Pole (240V AC, NEMA 4/4X)

Square D H321DS is a fusible safety disconnect switch designed for reliable circuit isolation and protection in industrial applications. This 3-pole switch operates at 240V AC with a 30A current rating and features a 200kA interrupting capacity for robust short-circuit protection. Constructed with NEMA 4/4X rated enclosure for weather and corrosion resistance, it accommodates wire sizes from AWG 14-6 copper or AWG 12-6 aluminum. The switch complies with industry standards for safety disconnects and is typically deployed in industrial control panels, motor control centers, and machinery requiring secure power isolation.

Key Features & Specifications

• Type: Fusible safety disconnect switch, Series F, Type H
• Voltage Rating: 240V AC
• Current Rating: 30A
• Configuration: Single
• Poles: 3
• Phase: 3
• AIC Rating: 200kA@240V
• Fuse Class: R
• Wire Size: AWG 12-6 aluminum, AWG 14-6 copper
• NEMA Rating: 4/4X
• Switch Style: Fusible
• Weight: 6.14 lb
• Item Subcategory: Disconnect

Product Identification

• UPC: 78590102360
• GTIN: 00785901023609