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Federal Pacific NEF-433040 - Molded Case Circuit Breaker 400A 480V AC

Federal Pacific
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Federal Pacific NEF-433040 is a molded case circuit breaker designed for overcurrent protection in electrical distribution systems. It is rated for 480V AC and 400A, providing reliable interruption of fault currents. The breaker features a compact, insulated case construction with a weight of 2.15 lb, suitable for panelboard or load center mounting. It complies with UL 489 standards for safety and performance in industrial environments. This breaker is commonly used in commercial and light industrial applications for branch circuit protection.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermal-magnetic trip
  • Voltage Rating: 480V AC
  • Current Rating: 400A
  • Dimensions: Standard molded case size
  • Standards: UL 489
  • Applications: Commercial and light industrial branch circuit protection
  • Switch Type: Toggle
  • Configuration: 3-pole
  • Coil Voltage Maximum: Not applicable
  • Temp Rating: 40°C
  • Shipping Dimensions: Standard
  • Phase: 3-phase
  • Voltage: 480V AC
  • Amperage: 400A
  • AIC rating: 10kA
  • Connection: Line and load lugs
  • Poles: 3
  • Protection: Overcurrent and short circuit
  • Functions: Thermal-magnetic trip
  • Frame Size: NEF
  • Trip Type: Thermal-magnetic
  • Panel Type: Standard
  • Breaker Type: Molded case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not specified
  • Metal Type: Steel
  • Panel Style: Standard
  • Bus Type: Standard
  • Fuse Class: Not applicable
  • Insulation Temperature: 105°C
  • Inductance: Not specified
  • Impedance: Not specified
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Not applicable
  • Clas: Not applicable
  • Mounting: Panel
  • Hz: 60 Hz
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not included
  • CPT: Not included
  • Full Load Amps: 400A
  • Dist Voltage: 480V AC
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 400A
  • Full Load Amp Minimum: 0A
  • Enclosure: Open
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not specified
  • Amperage Maximum: 400A
  • Amperage Minimum: 0A
  • Nema Rating: Not specified
  • Switch Style: Toggle
  • Wire Size: #6 AWG to 500 MCM
  • Certification: UL 489
  • Circuit Breaker Mounting Style: Panel
  • Terminal Connection: Line and load lugs
  • Frequency Rating: 60 Hz
  • Phase Connection: 3-phase
  • Standards: UL 489
  • Compatible Frames: NEF
  • Installation Type: Fixed
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: NEF
  • 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: 40°C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


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