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Siemens LGB1K050B - Molded Case Circuit Breaker 50A 347V (1-Pole Bolt-On)

Siemens
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Siemens LGB1K050B is a 1-pole molded case circuit breaker designed for thermal magnetic overcurrent protection in branch circuits. It is rated for 50A at 347V AC with a 65kA interrupting capacity at 277V, providing LI (Long-Time and Instantaneous) protection functions. The unit features a bolt-on connection, measures 2.87 x 0.969 x 4.988 inches, weighs 0.86 lb, and operates within a temperature range of -13°F to 158°F (-25°C to 70°C). It is certified to UL, CSA, IEC, and NOM standards, making it suitable for single-phase industrial and commercial power distribution applications.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, GB2 Series, Thermal Magnetic
  • Voltage Rating: 347V AC
  • Current Rating: 50A
  • Dimensions: 2.87 x 0.969 x 4.988 inch
  • Standards: UL, CSA, IEC, NOM
  • Applications: Single-phase industrial and commercial branch circuit protection
  • Switch Type: Circuit Breaker
  • Configuration: 1-Pole
  • Coil Voltage Maximum: Not applicable
  • Temp Rating: -13°F - 158°F (-25°C - 70°C)
  • Shipping Dimensions: Not specified
  • Phase: 1
  • Voltage: 347V
  • Amperage: 50A
  • AIC rating: 65kA@277V
  • Connection: Bolt-On
  • Poles: 1
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: Not specified
  • 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 applicable
  • Metal Type: Not specified
  • Panel Style: Not specified
  • Bus Type: Not specified
  • Fuse Class: Not applicable
  • Insulation Temperature: Not specified
  • Inductance: Not applicable
  • Impedance: Not applicable
  • 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 (assumed)
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not specified
  • CPT: Not specified
  • Full Load Amps: 50A
  • Dist Voltage: Not specified
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 50A
  • Full Load Amp Minimum: Not applicable
  • Enclosure: Not specified
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not specified
  • Amperage Maximum: 50A
  • Amperage Minimum: Not applicable
  • Nema Rating: Not specified
  • Switch Style: Not applicable
  • Wire Size: Not specified
  • Certification: UL, CSA, IEC, NOM
  • Circuit Breaker Mounting Style: Bolt-On
  • Terminal Connection: Bolt-On
  • Frequency Rating: 50/60 Hz (assumed)
  • Phase Connection: Single-phase
  • Standards: UL, CSA, IEC, NOM
  • Compatible Frames: Not specified
  • Installation Type: Panelboard
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: GB2
  • Current Rating: 50A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not applicable
  • 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: 70°C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: 804766340093
  • GTIN: 00804766340093