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Square D MAL36300 - Molded Case Circuit Breaker 300A 600V 3P

Square D
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Square D MAL36300 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase industrial power distribution systems. It features a 300A continuous current rating and a 600V AC voltage rating, housed within a robust M-Frame construction with a feed-thru connection. The breaker utilizes a thermal-magnetic trip unit for combined long-time and instantaneous (LI) protection, achieving an interrupting capacity of 30kA at 480V AC. It is certified to UL, CSA, NOM, and IEC standards for global compliance and is typically applied in panelboards, switchboards, and industrial control panels.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, M Frame
  • Voltage Rating: 600V AC
  • Current Rating: 300A
  • Poles: 3
  • Phase: 3-Phase
  • AIC Rating: 30kA @ 480V AC
  • Connection: Feed-Thru
  • Protection Functions: Long-Time and Instantaneous (LI)
  • Certification: UL, CSA, NOM, IEC
  • Frame Size: M Frame
  • Weight: 40 lb