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Square D LGL36400CU43XAB - Powerpact L-Frame 400A 600V AC

Square D
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The Square D LGL36400CU43XAB is a Powerpact L-frame circuit breaker designed for primary overcurrent protection in industrial power distribution systems. This 100% rated, solid-state trip unit provides LSI (Long-Time, Short-Time, and Instantaneous) protection functions, rated for 400A at 600V AC with a 35kA interrupting capacity at 480V AC. The three-pole, three-phase breaker measures 13.39 inches in height, 5.64 inches in width, and 5.38 inches in depth, weighing 5.19 lb, and features lug-type terminal connections. It complies with UL, CSA, NEMA, NOM, and IEC standards, with an operating temperature range of 28 to 158°F (-2 to 70°C). Typical applications include main or feeder protection in switchboards, panelboards, and motor control centers within heavy industrial environments.

Key Features & Specifications
  • Type: Powerpact L-frame, solid-state trip unit, 100% rated
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Dimensions: Height 13.39 in (340 mm) x Depth 5.38 in (136.65 mm) x Width 5.64 in (143.26 mm)
  • Standards: UL, CSA, NEMA, NOM, IEC
  • Applications: Main or feeder protection in switchboards, panelboards, motor control centers
  • Switch Type: Circuit breaker
  • Configuration: Three-pole, three-phase
  • Coil Voltage Maximum: Not applicable (solid-state trip)
  • Temp Rating: 28-158°F (-2-70°C)
  • Shipping Dimensions: Not specified
  • Phase: 3
  • Voltage: 600V AC
  • Amperage: 400A
  • AIC rating: 35kA@480V
  • Connection: Lug
  • Poles: 3
  • Protection: Solid State
  • Functions: LSI - Long-Time, Short-Time, and Instantaneous
  • Frame Size: L Frame
  • Trip Type: Solid state
  • Panel Type: Not specified
  • Breaker Type: 100% rated
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not specified
  • Metal Type: Not specified
  • Panel Style: Not specified
  • Bus Type: Not specified
  • Fuse Class: Not applicable
  • Insulation Temperature: Not specified
  • Inductance: Not specified
  • Impedance: Not specified
  • Barrels: Not specified
  • Class Rating: Not specified
  • Diameter: Not specified
  • Velocity: Not specified
  • Clip Center: Not specified
  • Clas: Not specified
  • Mounting: Not specified
  • Hz: Not specified
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not specified
  • CPT: Not specified
  • Full Load Amps: Not specified
  • Dist Voltage: Not specified
  • Bucket Size: Not specified
  • Bucket Style: Not specified
  • Bucket Type: Not specified
  • Full Load Amp Maximum: Not specified
  • Full Load Amp Minimum: Not specified
  • Enclosure: Not specified
  • Relay Style: Not specified
  • Coil Voltage Minimum: Not applicable
  • Wire: Not specified
  • Amperage Maximum: 400A
  • Amperage Minimum: Not specified
  • Nema Rating: Not specified
  • Switch Style: Not specified
  • Wire Size: Not specified
  • Certification: UL, CSA, NEMA, NOM, IEC
  • Circuit Breaker Mounting Style: Not specified
  • Terminal Connection: Lug
  • Frequency Rating: Not specified
  • Phase Connection: Not specified
  • Standards: UL, CSA, NEMA, NOM, IEC
  • Compatible Frames: L Frame
  • Installation Type: Not specified
  • Item QTY: Not specified
  • Nema Starter Size: Not specified
  • Breaker Frame: L Frame
  • Current Rating: 400A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not specified
  • Peak Pulse Current: Not applicable
  • Breakdown Voltage (MIN VBR@IT ) (V): Not applicable
  • Breakdown Voltage (VBR@IT) (V): Not applicable
  • Polarity: Not applicable
  • Operating Temperature Maximum Celsius: 70°C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable