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Square D CVC400LA5 - Molded Case Circuit Breaker 400A 600V

Square D
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Square D CVC400LA5 is a molded case circuit breaker designed for overcurrent protection and switching of electrical circuits in industrial power distribution systems. It is rated for 400 amps at 600 volts AC, providing reliable interruption of fault currents up to 65 kAIC at 240 VAC. The unit features a compact construction with a depth of 5.38 inches and width of 5.64 inches, weighing 0.76 lb, and accepts wire sizes from AWG 2/0 to 500 kcmil copper or aluminum. This breaker complies with UL 489 and CSA standards, ensuring safe operation in demanding environments. Typical applications include motor control centers, panelboards, and switchboards in manufacturing plants and commercial facilities.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermal-magnetic trip, non-interchangeable trip unit
  • Voltage Rating: 600 VAC
  • Current Rating: 400 A
  • Dimensions: Depth 5.38 in (136.65 mm) x Width 5.64 in (143.26 mm)
  • Standards: UL 489, CSA C22.2 No. 5
  • Applications: Industrial power distribution, motor control centers, panelboards
  • Switch Type: Thermal-magnetic
  • Configuration: Fixed mount
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: Depth 5.38 in x Width 5.64 in x Height 3.5 in (approx.)
  • Phase: 3
  • Voltage: 600 VAC
  • Amperage: 400 A
  • AIC rating: 65 kAIC at 240 VAC, 35 kAIC at 480 VAC, 25 kAIC at 600 VAC
  • Connection: Line and load lugs
  • Poles: 3
  • Protection: Overcurrent and short-circuit
  • Functions: Circuit isolation and protection
  • Frame Size: LA
  • Trip Type: Thermal-magnetic, fixed
  • Panel Type: Not applicable
  • Breaker Type: Molded case
  • Control Voltage Minimum: Not applicable
  • Control Voltate Maximum: Not applicable
  • MCM Size: 500 kcmil maximum
  • Metal Type: Copper or aluminum
  • Panel Style: Not applicable
  • Bus Type: Not applicable
  • Fuse Class: Not applicable
  • Insulation Temperature: 75°C
  • Inductance: Not applicable
  • Impedance: Not applicable
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Not applicable
  • Clas: Not applicable
  • Mounting: Fixed
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: Not applicable
  • Aux Contacts: Not applicable
  • CPT: Not applicable
  • Full Load Amps: 400 A
  • Dist Voltage: 600 VAC
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 400 A
  • Full Load Amp Minimum: 400 A
  • Enclosure: Not applicable
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: AWG 2/0 to 500 kcmil
  • Amperage Maximum: 400 A
  • Amperage Minimum: 400 A
  • Nema Rating: Not applicable
  • Switch Style: Not applicable
  • Wire Size: AWG 2/0 to 500 kcmil copper or aluminum
  • Certification: UL 489, CSA
  • Circuit Breaker Mounting Style: Fixed
  • Terminal Connection: Line and load lugs
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-phase
  • Standards: UL 489, CSA C22.2 No. 5
  • Compatible Frames: LA frame
  • Installation Type: Panelboard or switchboard
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: LA
  • Current Rating: 400 A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not applicable
  • 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: 40°C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: 009635929957
  • GTIN: 00009635929957