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Square D MA364501021 - Molded Case Circuit Breaker 450A 600V

Square D
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The Square D MA364501021 is a 3-pole molded case circuit breaker from the I-Line family, designed for thermal-magnetic protection with long-time and instantaneous (LI) trip functions. It is rated for 600VAC, 450A continuous current, and provides an interrupting capacity of 30kA at 480VAC, operating on a 3-phase system. This unit features an I-Line style plug-in connection, an M Frame size, and weighs 38 lb, with a complete 120V shunt trip for remote tripping capability. It complies with industry standards for industrial power distribution and motor control applications. Typical applications include main or feeder protection in switchboards, panelboards, and motor control centers.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, I-Line Family, MA Type
  • Voltage Rating: 600VAC
  • Current Rating: 450A
  • Poles: 3
  • Phase: 3
  • Connection: I-Line Style Plug-In
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: M Frame
  • AIC Rating: 30kA@480V
  • Additional Info: Complete with 120V shunt trip
  • Weight: 38 lb