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Square D LH36400CBA - Molded Case Circuit Breaker 400A 600V 3-Pole

Square D
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Square D LH36400CBA is a 3-pole molded case circuit breaker designed for overcurrent protection in industrial power distribution systems. It carries a 400A current rating at 600VAC with a 35kA interrupting capacity at 480V, utilizing thermal magnetic protection with LI (Long-Time and Instantaneous) trip functions. The unit features an L Frame size, I-Line style plug-in connection, weighs 28 lb, and is constructed for three-phase applications. This breaker complies with industry standards for molded case circuit breakers and is suitable for use in panelboards, switchboards, and motor control centers. Typical applications include main or feeder protection in commercial and industrial electrical systems requiring reliable overcurrent interruption.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic, LI (Long-Time and Instantaneous) Protection
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Dimensions: L Frame size
  • Standards: Industry standard for molded case circuit breakers
  • Applications: Industrial power distribution, panelboards, switchboards, motor control centers
  • Switch Type: Circuit breaker
  • Configuration: 3-pole
  • Coil Voltage Maximum: Not applicable (thermal magnetic)
  • Temp Rating: Not specified
  • Shipping Dimensions: Not specified
  • Phase: 3
  • Voltage: 600V
  • Amperage: 400A
  • AIC rating: 35kA@480V
  • Connection: I-Line Style Plug-In
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: L Frame
  • Trip Type: Thermal Magnetic
  • Panel Type: Not specified
  • Breaker Type: Molded Case
  • 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: I-Line plug-in
  • 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 applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not specified
  • Amperage Maximum: 400A
  • Amperage Minimum: Not specified
  • Nema Rating: Not specified
  • Switch Style: Not applicable
  • Wire Size: Not specified
  • Certification: Not specified
  • Circuit Breaker Mounting Style: I-Line plug-in
  • Terminal Connection: I-Line style
  • Frequency Rating: Not specified
  • Phase Connection: 3-phase
  • Standards: Industry standard
  • Compatible Frames: L Frame
  • Installation Type: Plug-in
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • 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: Not specified
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: Not available
  • GTIN: Not available