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Square D MJA36500 - Molded Case Circuit Breaker 500A 600V 3P

Square D
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The Square D MJA36500 is a Powerpact family molded case circuit breaker designed to provide reliable overcurrent protection for three-phase industrial power distribution systems. It features a solid-state trip unit with long-time and instantaneous protection functions, rated for 500A continuous current and 600V AC voltage with an interrupting capacity of 65kA at 480V. The breaker is constructed with a robust 800A/M frame, measures 326.64 mm H x 210.06 mm W x 204.47 mm D, and weighs 28.9 lb, featuring panel-mount connection with box lug terminals compatible with wire sizes from 3/0 AWG to 500 kcmil. It complies with UL, CSA, NEMA, NOM-003-SCFI-2000, and IEC 60947-2 standards and is rated for operation in temperatures from -25 to 70 °C. This breaker is typically applied in I-Line panelboards for commercial and industrial electrical service and feeder protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Solid State Trip Unit
  • Voltage Rating: 600V AC
  • Current Rating: 500A
  • Frame Size: 800A/M
  • Poles: 3
  • AIC Rating: 65kA @ 480V
  • Connection: Panel Mount, Box Lug Terminal
  • Wire Size: 3 x AWG 3/0 to 3 x 500 kcmil (Aluminium/Copper)
  • Protection Functions: Long Time and Instantaneous Trip
  • Phase Connection: CBA
  • Breaker Type: Standard
  • Temp Rating: -25 to 70 °C (-13 to 158 °F)
  • Dimensions: 326.64 mm H x 210.06 mm W x 204.47 mm D (12.86 in x 8.27 in x 8.05 in)
  • Weight: 28.9 lb
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Certification: UL, CSA, NOM
  • Panel Type: I Line Panelboards
  • Family: Powerpact
  • Country of Origin: Mexico


Product Identification
  • UPC: 785901575696
  • GTIN: 00785901575696