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LB250-G - Molded Case Circuit Breaker 250V 250A (2-Pole Thermal-Magnetic)

United Fuses
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The LB250-G is a heavy-duty industrial circuit breaker designed for overcurrent protection in high-power electrical systems. It is rated for 250V AC/DC and 250A continuous current, featuring a robust molded case construction with a compact frame size for panel mounting. This breaker complies with UL 489 and CSA C22.2 standards, ensuring reliable performance in demanding environments. Typical applications include motor control centers, distribution panels, and industrial machinery requiring precise fault interruption.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermal-magnetic trip
  • Voltage Rating: 250V AC/DC
  • Current Rating: 250A
  • Dimensions: 5.19 lb weight
  • Standards: UL 489, CSA C22.2
  • Applications: Motor control centers, distribution panels, industrial machinery
  • Switch Type: Toggle
  • Configuration: 2-pole
  • Coil Voltage Maximum: 250V
  • Temp Rating: 40°C
  • Shipping Dimensions: 5.19 lb
  • Phase: Single-phase
  • Voltage: 250V
  • Amperage: 250A
  • AIC rating: 10kA
  • Connection: Lug
  • Poles: 2
  • Protection: Overcurrent
  • Functions: Trip indication
  • Frame Size: 250A
  • Trip Type: Thermal-magnetic
  • Panel Type: Standard
  • Breaker Type: Molded case
  • Control Voltage Minimum: 0V
  • Control Voltage Maximum: 250V
  • MCM Size: Not applicable
  • Metal Type: Steel
  • Panel Style: Flush mount
  • Bus Type: Copper
  • 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: 50/60
  • Coil Material: Copper
  • Horse Power: Not specified
  • Aux Contacts: Not included
  • CPT: Not included
  • Full Load Amps: 250A
  • Dist Voltage: 250V
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 250A
  • Full Load Amp Minimum: 0A
  • Enclosure: Open
  • Relay Style: Not applicable
  • Coil Voltage Minimum: 0V
  • Wire: Copper
  • Amperage Maximum: 250A
  • Amperage Minimum: 0A
  • Nema Rating: 1
  • Switch Style: Toggle
  • Wire Size: 14-2 AWG
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Panel
  • Terminal Connection: Lug
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Single-phase
  • Standards: UL 489, CSA C22.2
  • Compatible Frames: Not specified
  • Installation Type: Fixed
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: 250A
  • 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: 078312632875
  • GTIN: 00783126328752