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Square D JJL36250 - Molded Case Circuit Breaker 250A 600V 3P

Square D
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Square D JJL36250 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 4.9 lb. The breaker is constructed with thermal-magnetic trip protection for both long-time delay and instantaneous (LI) functions, utilizing feed-thru lug terminals compatible with wire sizes from 3/0 AWG to 350 kcmil for copper or aluminum conductors. It complies with UL, CSA, NEMA, NOM, and IEC 60947-2 standards and is rated for an interrupting capacity of 65kA at 480V AC, operating effectively in ambient temperatures from -25°C to 70°C. Typical applications include main circuit protection in panelboards, switchboards, and motor control centers.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Trip (LI), J-Frame
  • Voltage Rating: 600V AC
  • Current Rating: 250A
  • Dimensions: 191 mm H x 104 mm W x 86 mm D (7.5 in x 4.09 in x 3.4 in)
  • Weight: 4.9 lb
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Applications: Industrial power distribution, panelboards, switchboards, motor control centers
  • Switch Type: Circuit Breaker
  • Configuration: Fixed
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Phase: 3
  • AIC Rating: 65kA @ 480V AC
  • Connection: Feed-Thru
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous Trip (LI)
  • Frame Size: J
  • Terminal Connection: Lug
  • Wire Size: 3/0 AWG to 350 kcmil (Copper/Aluminum)
  • Certification: UL, CSA, NOM
  • Phase Connection: ABC
  • MCM Size: Min. 3/0 AWG, Max. 350 kcmil
  • Mounting: Fixed
  • Hz: 50/60 Hz
  • Country of Origin: Mexico


Product Identification
  • UPC: 785901955979
  • GTIN: 00785901955979