Square D H321N - Fusible Disconnect Switch 240V 30A (200kA AIC @240V)

Square D H321N is a fusible safety disconnect switch designed for industrial power distribution protection. This UL-listed Series F disconnect features a 240V voltage rating and 30A current capacity with a 200kA interrupting rating at 240V for reliable circuit isolation. The NEMA 1-rated enclosure measures 123.95mm (D) x 165.10mm (W) x 370.84mm (H) and accommodates Class R fuses, supporting wire sizes from #6 to #14 AWG (copper) or #6 to #12 AWG (aluminum). Compliant with UL standards, this three-phase switch provides secure power interruption for motor control centers, HVAC systems, and industrial machinery requiring fusible protection.

Key Features & Specifications

• Type: Fusible safety disconnect switch, Series F, Type H
• Voltage Rating: 240V AC
• Current Rating: 30A
• Dimensions: 123.95 x 165.10 x 370.84 mm (4.88 x 6.5 x 14.6 in)
• Standards: UL Listed
• Applications: Industrial power distribution, motor control, HVAC systems
• Switch Style: Fusible
• Configuration: Single
• Poles: 3
• Wire Size: #12–6 AWG (Al) / #14–6 AWG (Cu)
• AIC Rating: 200kA@240V
• NEMA Rating: 1
• Phase: 3
• Fuse Class: R
• Weight: 3.63 lb

Product Identification

• UPC: 785901480082
• GTIN: 00785901480082