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3111-400-23 - Molded Case Circuit Breaker 400A 600V AC

United Fuses
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The 3111-400-23 is a high-capacity industrial circuit breaker designed for primary overcurrent protection in electrical distribution systems. It is rated for 400 amps at 600 volts AC, with a robust interrupting capacity suitable for heavy-duty applications. Weighing 5.19 lb, this unit features a compact, molded case construction with thermal-magnetic trip technology for reliable fault response. It complies with UL 489 and CSA standards, ensuring safe operation in commercial and industrial environments. Typical applications include main service disconnects, feeder protection, and branch circuit protection in manufacturing plants and data centers.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermal-magnetic trip
  • Voltage Rating: 600 V AC
  • Current Rating: 400 A
  • Weight: 5.19 lb
  • Standards: UL 489, CSA
  • Applications: Main service disconnect, feeder protection, branch circuit protection


Product Identification
  • UPC: Not provided
  • GTIN: Not provided