Square D QMJ364 - Fusible Safety Switch 600V/200A (200kA AIC @480V)

Square D QMJ364 is a fusible safety switch designed for industrial power distribution systems requiring high fault current protection. This 600V AC-rated switch handles 200A continuous current with a 200kA interrupting capacity at 480V, featuring a rugged NEMA 1 enclosure and three-pole single-configuration design. Constructed with Class J fuses and compatible with HHED frames, it meets stringent industrial safety standards for electrical isolation. Typical applications include motor control centers, HVAC systems, and heavy machinery power management where reliable circuit protection is critical.

Key Features & Specifications

• Type: Fusible safety switch with Class J fuse protection
• Voltage Rating: 600V AC
• Current Rating: 200A continuous
• AIC Rating: 200kA @ 480V
• Configuration: Single, 3-pole
• Phase: 3-phase operation
• Compatible Frames: HHED series
• Switch Style: Fusible disconnect
• NEMA Rating: Type 1 enclosure
• Weight: 30 lb
• Standards: Meets industrial electrical safety requirements
• Applications: Motor control centers, industrial power distribution, heavy machinery

Product Identification

• GTIN: 00785901879763