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Square D MJA36500YP - Molded Case Circuit Breaker 500A 600V

Square D
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Square D MJA36500YP is a Schneider Electric Powerpact molded case circuit breaker designed for overload and short circuit protection in industrial power distribution systems. This three-phase, 500-amp unit operates at 600V AC with a 65kA interrupting capacity at 480V, utilizing solid state electronic trip technology for precise long-time and instantaneous (LI) protection functions. The M frame breaker features an I-Line style plug-in connection with load side lugs, measuring 12.86 inches in height, 8.27 inches in width, and 8.05 inches in depth, weighing 29 lb. It is UL listed and compliant with industry standards for reliable performance in demanding environments. Typical applications include main and feeder protection in commercial and industrial electrical panels, switchboards, and motor control centers.

Key Features & Specifications
  • Manufacturer: Schneider Electric
  • Item Subcategory: Molded Case
  • Family: Powerpact
  • Country of Origin: United States
  • Type: MJA
  • 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: I-Line Style Plug-In
  • Protection: Solid State
  • AIC rating: 65kA@480V
  • Phase: 3
  • Current Rating: 500A
  • Trip Unit: Electronic, Basic ET 1.0
  • Interrupt Rating: 25kA at 600V
  • UL Listed