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Ocal ST390GRG - Molded Case Circuit Breaker 600V 400A

Ocal
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The Ocal ST390GRG is a heavy-duty industrial circuit breaker designed for overcurrent protection in high-power electrical distribution systems. It is rated for 600V AC and 400A continuous current, featuring a robust molded case construction with a thermal-magnetic trip mechanism for precise fault interruption. The unit weighs 29.22 lb and is built for panel-mount installation, complying with UL 489 and NEMA standards for safety and reliability in commercial and industrial environments. Typical applications include main service disconnects, feeder protection, and branch circuit protection in manufacturing plants, data centers, and large-scale electrical infrastructure.

Key Features & Specifications
  • Type: Molded case circuit breaker with thermal-magnetic trip
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Weight: 29.22 lb
  • Standards: UL 489, NEMA
  • Applications: Main service disconnects, feeder protection, branch circuit protection
  • Circuit Breaker Mounting Style: Panel mount
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-phase
  • Terminal Connection: Line and load lugs


Product Identification
  • UPC: 70450803440
  • GTIN: 00704508034405