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ACP Electrical Fittings MIB400S - Molded Case Breaker 400A 600V

ACP Electrical Fittings
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ACP Electrical Fittings MIB400S is a robust industrial electrical component designed for reliable protection and control in demanding power distribution systems. This device supports a voltage rating of up to 600V AC and a current rating of 400A, ensuring high-capacity performance for heavy-duty applications. Constructed with durable materials, it weighs 5.19 lb and features a compact design suitable for standard panel mounting, with a molded case breaker type and thermal-magnetic trip mechanism for precise overload and short-circuit protection. It complies with UL and NEMA standards, making it suitable for use in commercial and industrial environments such as manufacturing plants, data centers, and power distribution panels.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermal-magnetic trip, fixed configuration
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Dimensions: Standard panel mount, weight 5.19 lb
  • Standards: UL 489, NEMA AB-1
  • Applications: Industrial power distribution, motor control centers, switchboards
  • Breaker Type: Molded case
  • Trip Type: Thermal-magnetic
  • Poles: 3-pole
  • Frame Size: 400A frame
  • Connection: Line and load lugs
  • Phase: 3-phase
  • Frequency Rating: 50/60 Hz
  • Interrupting Rating: 65 kAIC at 240V AC, 35 kAIC at 480V AC
  • Mounting: Fixed, panel mount
  • Enclosure: Open type (no enclosure)
  • Wire Size: #14 AWG to 500 MCM
  • Operating Temperature: -20°C to 60°C
  • Certification: UL listed, CSA certified


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