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Square D MA364501121 - Molded Case Circuit Breaker 450A 600V

Square D
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The Square D MA364501121 is a 3-pole molded case circuit breaker from the I-Line family, designed for overcurrent protection in industrial power distribution systems. It operates at a maximum voltage rating of 600V and a continuous current rating of 450A, with an AIC rating of 30kA at 480V. This unit features an M Frame size, thermal magnetic protection with LI (Long-Time and Instantaneous) functions, and utilizes an I-Line style plug-in connection for secure mounting. The breaker weighs 38 lb and is constructed for 3-phase applications, ensuring reliable performance in demanding environments. It is suitable for use in switchboards, panelboards, and other industrial electrical systems requiring robust circuit interruption.

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


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