Default product image

Square D LRA36400U33X - Molded Case Circuit Breaker 400A 600V

Square D
Price
Save $-11,225.37
/
Condition
  • In stock, ready to ship
  • Backordered, shipping soon
Call for Price
Square D LRA36400U33X is a molded case circuit breaker designed for providing robust overcurrent protection in demanding three-phase industrial power systems. It features a solid-state LSI (Long-Time, Short-Time, Instantaneous) trip unit for precise protection, rated for 400A at 600V with a high interrupting capacity of 200kA at 480V. The breaker is constructed with an L-frame and measures 340 mm H x 140 mm W x 110 mm D (13.4" x 5.5" x 4.3"), featuring an I-Line style plug-in connection for simplified installation and compatibility with AWG 3/0 to 500 kcmil conductors. It complies with major industry standards including UL, CSA, NEMA, and IEC 60947-2, and operates reliably within a temperature range of -2 to 70 °C (28 to 158 °F). This breaker is typically applied in industrial facilities, data centers, and large commercial buildings for main feeder and branch circuit protection.

Key Features & Specifications
  • Type: LRA Molded Case Circuit Breaker with Solid-State LSI Protection
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Frame Size: L Frame
  • Poles: 3
  • Phase: 3
  • AIC Rating: 200kA @ 480V
  • Connection: I-Line Style Plug-In
  • Wire Size: AWG 3/0 to 500 kcmil (Aluminium/Copper)
  • Protection Functions: Long-Time, Short-Time, Instantaneous (LSI)
  • Trip Type: Solid State
  • Dimensions: 340 mm H x 140 mm W x 110 mm D (13.4" x 5.5" x 4.3")
  • Weight: 14 lb
  • Temp Rating: -2 to 70 °C (28 to 158 °F)
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Certification: UL, CSA, NOM
  • Family: Powerpact
  • Country of Origin: United States


Product Identification
  • UPC: 060648628388
  • GTIN: 03606486283882