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Square D MA364501124 - Molded Case Circuit Breaker 450A 600V 3-Pole

Square D
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Square D MA364501124 is a 3-pole molded case circuit breaker from the I-Line family, designed for thermal-magnetic protection with LI (Long-Time and Instantaneous) trip functions. It is rated for 600V AC, 450A continuous current, and provides an interrupting capacity of 30kA at 480V, with a 3-phase configuration. The unit weighs 38 lb, features an M Frame size, and uses an I-Line style plug-in connection for secure mounting in compatible panelboards. This breaker complies with industry standards for industrial power distribution, offering reliable overcurrent and short-circuit protection. Typical applications include main or feeder protection in commercial and industrial electrical systems requiring high amperage and robust fault handling.

Key Features & Specifications
  • Type: Molded Case, Thermal Magnetic, I-Line Family
  • Voltage Rating: 600V AC
  • Current Rating: 450A
  • Poles: 3
  • Phase: 3
  • AIC Rating: 30kA@480V
  • Connection: I-Line Style Plug-In
  • Frame Size: M Frame
  • Functions: LI - Long-Time and Instantaneous
  • Protection: Thermal Magnetic
  • Weight: 38 lb
  • Standards: UL, CSA, NEMA (implied by Square D I-Line compliance)
  • Applications: Industrial power distribution, main or feeder circuit protection


Product Identification
  • UPC: Not specified
  • GTIN: Not specified