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Square D N250MKC - Main Breaker 250A 600V (NF Series)

Square D
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Square D N250MKC is a main circuit breaker from the NF Series, designed for overcurrent protection in industrial power distribution systems. It is rated for 600Y/347VAC and carries a maximum current of 250A, supporting both single-phase and three-phase configurations. The unit features a compact construction with a depth of 3.09 inches and width of 4.44 inches, weighing 10.871 lb, and is compatible with K frames. It complies with RoHS and REACh standards and holds cULus certification. This breaker is typically used in main panel applications for commercial and industrial electrical systems.

Key Features & Specifications
  • Type: Main circuit breaker, NF Series
  • Voltage Rating: 600Y/347VAC
  • Current Rating: 250A
  • Dimensions: Depth 3.09 in (78.49 mm) x Width 4.44 in (112.78 mm)
  • Standards: RoHS, REACh
  • Certification: cULus
  • Applications: Main panel protection in industrial power systems
  • Poles: 2, 3
  • Phase: 1, 3
  • Configuration: Main
  • Panel Type: NF
  • Compatible Frames: K
  • Weight: 10.871 lb


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