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Square D MJP36300 - Molded Case Circuit Breaker 300A 600V

Square D
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Square D MJP36300 is a Schneider Electric PowerPact M series molded case circuit breaker designed for overcurrent protection in three-phase power distribution systems. This 300-amp, three-pole unit delivers 600VAC voltage handling with a solid-state electronic trip unit providing LI (Long-Time and Instantaneous) protection functions. The unit mount breaker features a bolt-on connection type, measures 8.05 inches deep, 8.27 inches wide, and 12.86 inches high, weighing 29 pounds. It carries a 65kA interrupting rating at 480VAC and is manufactured in the United States. This circuit breaker is suited for industrial and commercial applications requiring reliable solid-state protection in an M frame package.

Key Features & Specifications
  • Manufacturer: Schneider Electric
  • Item Subcategory: Molded Case
  • Family: Powerpact
  • Country of Origin: United States
  • Type: MJP
  • Dimensions: Depth 8.05 in (204.47 mm) Width 8.27 in (210.06 mm) Height 12.86 in (326.64 mm)
  • Weight: 29 lb
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: M Frame
  • Voltage Rating: 600V
  • Poles: 3
  • Connection: Bolt-On
  • Protection: Solid State
  • AIC rating: 65kA@480V
  • Phase: 3
  • Current Rating: 300A
  • Amperage: 300A
  • Voltage: 600VAC
  • Interrupt Rating: 25kA at 600VAC
  • Mounting Type: Unit Mount
  • Trip Unit: Electronic Trip
  • Series/Frame: PowerPact M