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Allen-Bradley 140G-JTF3-D12 - Thermal Magnetic Trip Unit 125A 600V 3-Pole

Allen-Bradley
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Allen-Bradley 140G-JTF3-D12 is a 3-pole thermal magnetic circuit breaker designed for overload and short-circuit protection in industrial power distribution systems. It is rated for 600V AC with an adjustable amperage range of 125A minimum to 125A maximum, providing precise current limiting for connected equipment. The unit weighs 1 lb and is constructed as a compact trip unit, compatible with the 140G-J frame series for modular installation. This breaker complies with UL 489 and IEC 60947-2 standards, ensuring reliable performance in demanding environments. Typical applications include motor control centers, panelboards, and branch circuit protection in manufacturing and process industries.

Key Features & Specifications
  • Type: Thermal Magnetic Trip Unit
  • Voltage Rating: 600V AC
  • Current Rating: 125A (adjustable range 125A minimum to 125A maximum)
  • Poles: 3
  • Protection: Thermal Magnetic
  • Compatible Frames: 140G-J
  • Weight: 1 lb
  • Standards: UL 489, IEC 60947-2
  • Applications: Motor control centers, panelboards, branch circuit protection