Square D DF-8144-1 - Fusible Safety Switch 480V 200A (3-Pole NEMA 1)

Square D DF-8144-1 is a panel-mounted fusible safety switch designed for industrial power distribution systems requiring reliable circuit protection. The switch features a 480V AC voltage rating and 200A current capacity in a 3-phase configuration, housed in a durable NEMA 1 enclosure for indoor use. Its dual/twin fusible design with Class R fuses and RLF-compatible frame ensures robust short-circuit protection, while the 10 lb compact construction optimizes panel space efficiency. Compliant with industrial safety standards, this switch is engineered for motor control centers, machinery power disconnects, and heavy equipment applications where fused isolation is critical.

Key Features & Specifications

• Type: Panel-mounted fusible safety switch, DF Series, dual/twin configuration
• Voltage Rating: 480V AC
• Current Rating: 200A
• Poles: 3
• Phase: 3-phase
• Fuse Class: R
• NEMA Rating: 1 (indoor use)
• Compatible Frames: RLF
• Weight: 10 lb
• Switch Style: Fusible disconnect
• Configuration: Dual/Twin