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Square D LRA36600U33X - Molded Case Circuit Breaker 600A 600V 3P

Square D
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Square D LRA36600U33X is a molded case circuit breaker designed for providing comprehensive overcurrent protection in demanding three-phase industrial power distribution systems. It features a 600A current rating and a 600V AC voltage rating, housed within a compact L-frame measuring 340 mm H x 140 mm W x 110 mm D and weighing 15 lb. The breaker utilizes solid-state protection with LSI (Long-Time, Short-Time, Instantaneous) trip functions and offers a high interrupting capacity of 200kA at 480V AC. It is engineered for compliance with UL, CSA, NEMA, NOM, and IEC 60947-2 standards, ensuring reliable operation in environments from -2 to 70 °C. Its I-Line style plug-in connection facilitates installation for typical applications in panelboards, switchboards, and industrial control equipment.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Solid State Protection with LSI Trip Functions
  • Voltage Rating: 600V AC
  • Current Rating: 600A
  • Frame Size: L Frame
  • Poles: 3
  • Phase: 3
  • AIC Rating: 200kA at 480V AC
  • Connection: I-Line Style Plug-In
  • Wire Size: 2 x AWG 2/0 to 500 kcmil (Aluminium/Copper)
  • Dimensions: 13.4 in H x 5.5 in W x 4.3 in D (340 mm x 140 mm x 110 mm)
  • Weight: 15 lb
  • Operating Temperature: 28 to 158 °F (-2 to 70 °C)
  • Standards & Certification: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Protection: Solid State
  • Functions: Long-Time, Short-Time, Instantaneous (LSI)


Product Identification
  • UPC: 060648628392
  • GTIN: 03606486283929