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Square D MA366001121 - Molded Case Circuit Breaker 600A 600V

Square D
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Square D MA366001121 is a 3-pole molded case circuit breaker from the I-Line family, designed for overcurrent protection in industrial power distribution systems. It carries a 600A current rating at 600VAC, with a 30kA interrupting capacity at 480V, and utilizes thermal-magnetic protection with LI (Long-Time and Instantaneous) trip functions. This M Frame breaker weighs 38 lb and features an I-Line style plug-in connection for direct bus mounting in Square D panelboards. It complies with applicable UL and NEMA standards for industrial circuit protection. Typical applications include main or feeder protection in commercial and industrial switchboards, motor control centers, and distribution panels.

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


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