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Siemens HHFXD63B250L - 250A 3-Pole Molded Case Breaker

Siemens
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Siemens HHFXD63B250L is a 3-pole molded case circuit breaker from the Sentron Series, designed to provide LI (Long-Time and Instantaneous) thermal magnetic protection for electrical systems. This 250A rated breaker operates at a maximum voltage of 600V and delivers an interrupting capacity of 100kA at 480V, with a 3-phase configuration and a temperature rating of 104°F (40°C). Physically, it measures 9.843 x 5.906 x 6.693 inches, weighs 9.017 lb, and features a feed-thru connection with line and load side lugs included (TA1FD350A), accommodating wire sizes from 6AWG to 350KCM for copper and 4AWG to 350KCM for aluminum. The breaker is built on an FD Frame and is compliant with industry standards for use in panel types including S4, P4, SPP, F1, FC1, FCII, CDP-5, CDP-6, SB1-3, S5, P5, and SPP/FPP. Typical industrial applications include distribution and protection in commercial and industrial power systems requiring reliable overcurrent and short-circuit interruption.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Sentron Series, Thermal Magnetic, LI Protection
  • Voltage Rating: 600V AC
  • Current Rating: 250A
  • Dimensions: 9.843 x 5.906 x 6.693 inch
  • Standards: UL, CSA, NEMA (implied by Sentron Series)
  • Applications: Industrial power distribution, motor protection, feeder circuits
  • Switch Type: Circuit Breaker
  • Configuration: 3-Pole
  • Coil Voltage Maximum: Not applicable (thermal magnetic)
  • Temp Rating: 104 °F (40 °C)
  • Shipping Dimensions: 9.843 x 5.906 x 6.693 inch
  • Phase: 3
  • Voltage: 600V
  • Amperage: 250A
  • AIC rating: 100kA@480V
  • Connection: Feed-Thru
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: FD Frame
  • Trip Type: Thermal Magnetic
  • Panel Type: S4, P4, SPP, F1, FC1, FCII, CDP-5, CDP-6, SB1-3, S5, P5, SPP/FPP, F2
  • Breaker Type: Molded Case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: 350 KCM (CU/AL)
  • Metal Type: Copper/Aluminum compatible
  • Panel Style: Various (S4, P4, etc.)
  • Bus Type: Not specified
  • Fuse Class: Not applicable
  • Insulation Temperature: 104°F (40°C) rated
  • Inductance: Not applicable
  • Impedance: Not specified
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Not specified
  • Clas: Not applicable
  • Mounting: Panel mount
  • Hz: 50/60 Hz (typical)
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not included
  • CPT: Not included
  • Full Load Amps: 250A
  • Dist Voltage: Not specified
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 250A
  • Full Load Amp Minimum: Not specified
  • Enclosure: Open (no enclosure)
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: 6AWG - 350KCM (CU) / 4AWG - 350KCM (AL)
  • Amperage Maximum: 250A
  • Amperage Minimum: Not specified
  • Nema Rating: Not specified
  • Switch Style: Not applicable
  • Wire Size: 6AWG - 350KCM (CU) / 4AWG - 350KCM (AL)
  • Certification: UL, CSA (implied)
  • Circuit Breaker Mounting Style: Panel mount
  • Terminal Connection: Feed-thru lugs (TA1FD350A)
  • Frequency Rating: 50/60 Hz (typical)
  • Phase Connection: 3-Phase
  • Standards: UL 489, CSA C22.2 (implied)
  • Compatible Frames: FD Frame
  • Installation Type: Fixed
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: FD
  • Current Rating: 250A
  • 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: 783643084636
  • GTIN: 00783643084636