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PLA34040CU63 - Molded Case Circuit Breaker 400A 480V AC (3-Pole)

United Fuses
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The PLA34040CU63 is a molded case circuit breaker designed for primary overcurrent and short-circuit protection in industrial power distribution systems. It is rated for 480V AC with a continuous current capacity of 400A, providing reliable interruption under fault conditions. This three-pole unit features a compact frame size with a weight of 5.19 lb and is constructed with a thermal-magnetic trip mechanism for coordinated protection. The 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 facilities and commercial buildings.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermal-magnetic trip
  • Voltage Rating: 480V AC
  • Current Rating: 400A
  • Dimensions: Compact frame size
  • Standards: UL 489, CSA
  • Applications: Industrial power distribution, motor control centers
  • Switch Type: Circuit breaker
  • Configuration: Three-pole
  • Coil Voltage Maximum: Not applicable
  • Temp Rating: Standard industrial
  • Shipping Dimensions: Not specified
  • Phase: Three-phase
  • Voltage: 480V AC
  • Amperage: 400A
  • AIC rating: Not specified
  • Connection: Line and load terminals
  • Poles: 3
  • Protection: Overcurrent, short-circuit
  • Functions: Circuit isolation, fault protection
  • Frame Size: Compact
  • 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: Standard
  • 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: Panel mount
  • Hz: 50/60 Hz
  • 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: UL, CSA
  • Circuit Breaker Mounting Style: Panel
  • Terminal Connection: Standard
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Three-phase
  • Standards: UL 489, CSA
  • Compatible Frames: Not specified
  • Installation Type: Fixed
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: Compact
  • 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: 762179036579