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Square D JJA36250 - Molded Case Circuit Breaker 250A 600V 3P

Square D
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Square D JJA36250 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase industrial power distribution systems. It features a 250A current rating and a 600V AC voltage rating, housed within a compact J-frame measuring 191 mm H x 104 mm W x 86 mm D and weighing 6.574 lb. The breaker is constructed with thermal-magnetic protection for long-time and instantaneous (LI) trip functions and offers a 65kA interrupting capacity at 480V. It complies with UL, CSA, NEMA, NOM, and IEC 60947-2 standards, ensuring suitability for a wide range of commercial and industrial panelboard applications. Its I-Line plug-in connection with lug terminals supports conductor sizes from 3/0 AWG to 350 kcmil for both copper and aluminum, and it operates effectively within a temperature range of -25 to 70 °C.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Trip, I-Line Plug-In
  • Voltage Rating: 600V AC
  • Current Rating: 250A
  • Dimensions: 7.5 in H (191 mm) x 4.09 in W (104 mm) x 3.4 in D (86 mm)
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Applications: Industrial Power Distribution, Panelboards
  • Switch Type: Circuit Breaker
  • Configuration: 3-Pole
  • Temp Rating: -25 to 70 °C (-13 to 158 °F)
  • Phase: 3
  • AIC Rating: 65kA @ 480V
  • Connection: I-Line Style Plug-In, Lug Terminals
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous Trip (LI)
  • Frame Size: J
  • Wire Size: 3/0 AWG to 350 kcmil (Cu/Al)
  • Certification: UL, CSA, NOM
  • Phase Connection: ABC
  • MCM Size: Min. 3/0 AWG, Max. 350 kcmil
  • Terminal Connection: I-Line, Lug
  • Family: Powerpact
  • Country of Origin: Mexico


Product Identification
  • UPC: 785901689881
  • GTIN: 00785901689881