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Square D QMB400T6 - Fusible Disconnect Switch 400A 600V

Square D
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Square D QMB400T6 is a fusible disconnect switch engineered for main and branch circuit protection in industrial and commercial electrical systems. It is rated for 400 amperes at 600 volts AC and 250 volts DC, featuring a 3-pole configuration for three-phase power distribution. The unit is designed for surface mounting and includes an insulated, solid neutral that can be bonded to the enclosure with a grounding strap, with a weight of 6.6 lb. This switch complies with industry standards for use as service equipment and accepts Class T fuses for reliable overcurrent protection. It is typically applied in industrial and commercial power distribution systems requiring robust circuit isolation and protection.

Key Features & Specifications
  • Manufacturer: Schneider Electric
  • Amperage Rating: 400A
  • Voltage Rating: 600V AC, 250V DC
  • Number of Poles: 3
  • Fuse Type: Class T Compatible
  • Mounting: Surface
  • Neutral: Insulated, solid
  • Application: Main and branch circuit protection
  • Suitable for service equipment use
  • Weight: 6.6 lb


Product Identification
  • UPC: 78590105102
  • GTIN: 00785901051022