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Thomas & Betts 145 - Circuit Breaker 45A 1-Pole Plug-In

Thomas & Betts
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Thomas & Betts 145 is a single-pole, plug-in circuit breaker designed for overcurrent protection in electrical distribution systems. It features a thermal magnetic protection mechanism with long-time and instantaneous (LI) trip functions, rated for 120V AC and 45A, with an interrupting capacity of 10kA at 120V. The unit measures 2-1/2 inches in height and 13/64 inches in thickness, weighing 3.65 lb, and is constructed as a hardware component for panelboard installation. This breaker is UL Listed, ensuring compliance with North American safety standards for industrial and commercial applications. It is typically used in lighting panels, power panels, and other branch circuit protection systems requiring reliable overcurrent interruption.

Key Features & Specifications
  • Type: Thermal Magnetic Circuit Breaker
  • Voltage Rating: 120V
  • Current Rating: 45A
  • Dimensions: 2-1/2 in H x 13/64 in THK
  • Standards: UL Listed
  • Applications: Branch circuit protection in panelboards
  • Switch Type: N/A
  • Configuration: Plug-In
  • Coil Voltage Maximum: N/A
  • Temp Rating: N/A
  • Shipping Dimensions: N/A
  • Phase: 1
  • Voltage: 120V
  • Amperage: 45A
  • AIC rating: 10kA@120V
  • Connection: Plug-In
  • Poles: 1
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: N/A
  • Trip Type: Thermal Magnetic
  • Panel Type: N/A
  • Breaker Type: Plug-In
  • Control Voltage Minimum: N/A
  • Control Voltate Maximum: N/A
  • MCM Size: N/A
  • Metal Type: N/A
  • Panel Style: N/A
  • Bus Type: N/A
  • Fuse Class: N/A
  • Insulation Temperature: N/A
  • Inductance: N/A
  • Impedance: N/A
  • Barrels: N/A
  • Class Rating: N/A
  • Diameter: N/A
  • Velocity: N/A
  • Clip Center: N/A
  • Clas: N/A
  • Mounting: Plug-In
  • Hz: N/A
  • Coil Material: N/A
  • Horse Power: N/A
  • Aux Contacts: N/A
  • CPT: N/A
  • Full Load Amps: N/A
  • Dist Voltage: N/A
  • Bucket Size: N/A
  • Bucket Style: N/A
  • Bucket Type: N/A
  • Full Load Amp Maximum: N/A
  • Full Load Amp Minimum: N/A
  • Enclosure: N/A
  • Relay Style: N/A
  • Coil Voltage Minimum: N/A
  • Wire: N/A
  • Amperage Maximum: 45A
  • Amperage Minimum: N/A
  • Nema Rating: N/A
  • Switch Style: N/A
  • Wire Size: N/A
  • Certification: UL Listed
  • Circuit Breaker Mounting Style: Plug-In
  • Terminal Connection: Plug-In
  • Frequency Rating: N/A
  • Phase Connection: 1
  • Standards: UL Listed
  • Compatible Frames: N/A
  • Installation Type: Plug-In
  • Item QTY: N/A
  • Nema Starter Size: N/A
  • Breaker Frame: N/A
  • Current Rating: 45A
  • Reverse Standoff Voltage: N/A
  • Watts: N/A
  • Peak Pulse Current: N/A
  • Breakdown Voltage (MIN VBR@IT ) (V): N/A
  • Breakdown Voltage (VBR@IT) (V): N/A
  • Polarity: N/A
  • Operating Temperature Maximum Celsius: N/A
  • Max Clamp Voltage: N/A
  • On-State Current: N/A


Product Identification
  • UPC: 078621000145