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American/Federal Pacific HJL634400 - Molded Case 400A 600V

American/Federal Pacific
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American/Federal Pacific HJL634400 is a three-pole molded case circuit breaker from the HJL Series, designed for overcurrent protection in industrial power distribution systems. It carries a 400A current rating at 600VAC, with a 22kA interrupting capacity at 480VAC, and employs thermal-magnetic protection with LI (Long-Time and Instantaneous) trip functions. This bolt-on unit weighs 28 lb and features a compact molded case construction for panelboard installation. It complies with industry standards for molded case circuit breakers, suitable for 3-phase applications requiring reliable short-circuit and overload protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, HJL Series, Thermal Magnetic
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Dimensions: Standard molded case frame size
  • Standards: UL/CSA listed for industrial applications
  • Applications: Industrial power distribution, motor control centers, panelboards
  • Switch Type: Molded case
  • Configuration: 3-pole
  • Coil Voltage Maximum: Not applicable (thermal magnetic)
  • Temp Rating: Standard 40°C ambient
  • Shipping Dimensions: 6.5 x 4.5 x 3.5 inches (approx)
  • Phase: 3
  • Voltage: 600V
  • Amperage: 400A
  • AIC rating: 22kA@480V
  • Connection: Bolt-On
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: HJL
  • Trip Type: Thermal Magnetic
  • Panel Type: Standard industrial panelboard
  • Breaker Type: Molded Case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not specified
  • Metal Type: Copper/steel contacts
  • Panel Style: Bolt-on
  • Bus Type: Standard
  • Fuse Class: Not applicable
  • Insulation Temperature: 105°C (typical)
  • 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: Bolt-On
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not included
  • CPT: Not included
  • Full Load Amps: 400A
  • Dist Voltage: 600V
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 400A
  • Full Load Amp Minimum: 400A
  • Enclosure: Open frame
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not specified
  • Amperage Maximum: 400A
  • Amperage Minimum: 400A
  • Nema Rating: Not specified
  • Switch Style: Molded case
  • Wire Size: Not specified
  • Certification: UL/CSA
  • Circuit Breaker Mounting Style: Bolt-On
  • Terminal Connection: Bolt-On lugs
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-phase
  • Standards: UL 489, CSA C22.2
  • Compatible Frames: HJL series
  • Installation Type: Panelboard
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: HJL
  • 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