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Square D MAF36300 - Molded Case Circuit Breaker 300A 600V 3P (30kA AIC)

Square D
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Square D MAF36300 is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase industrial power distribution systems. It features a 300A current rating and a 600V voltage rating, engineered to interrupt faults up to 30kA at 480V AC. The breaker is constructed with a robust M-frame design, utilizes a bolt-on connection for secure installation, and incorporates a thermal-magnetic trip unit for combined long-time and instantaneous (LI) protection functions. This unit complies with relevant industry standards for safety and performance and is typically applied in panelboards, switchboards, and industrial control panels where robust circuit protection is required.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, Long-Time and Instantaneous (LI) Trip Functions
  • Voltage Rating: 600V AC
  • Current Rating: 300A
  • Frame Size: M Frame
  • AIC Rating: 30kA @ 480V AC
  • Poles: 3
  • Phase: 3-Phase
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • Functions: LI (Long-Time and Instantaneous)
  • Weight: 38 lb
  • Standards: Meets applicable industry standards for circuit interruption and safety
  • Applications: Industrial power distribution, panelboards, switchboards, motor control centers
  • Additional Info: Lugs are not included; consult manufacturer for lug part numbers based on wiring specifications.