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Allen Bradley 140G MCB 140G-J3F3-D12

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140G-J3F3-D12

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The 140G-J3F3-D12 from Allen-Bradley is a robust molded case circuit breaker designed for effective electrical protection. Rated for a maximum operation of 250 Amps and equipped with an interrupting capacity of 35 kA, it supports precise settings for both thermal and magnetic protections.

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Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Technical specifications for 140G-J3F3-D12

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-J3F3-D12
Weight12.00 lbs (5.44 kg)
FrameJ
Amps250
Interrupting Rating35 kA
Protection TypeAdjust Thermal/ Adjust Magnetic
Current Range120 A
Rated Insulation Voltage1000 V
Rated Impulse Withstand Voltage8 kV
Mechanical Life240 Operations/hr.
Electrical Life120 Operations/hr.
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The Allen-Bradley 140G-J3F3-D12 is categorized as a molded case circuit breaker, built for reliable usage in industrial settings. This component can handle a maximum current of 250 Amps and features a 35 kA interrupting rating, ensuring effective circuit protection against overcurrent conditions. The design includes adjustable thermal and magnetic protection types, allowing for customization in various applications. This breaker operates at a current range of 120 A, making it versatile for different electrical loads.

With a rated insulation voltage of 1000 V, the 140G-J3F3-D12 can safely manage high-voltage conditions. In addition, it withstands impulse voltages up to 8 kV, underscoring its capability to handle power surges. Weighing 5.51 lb, the unit's installation is straightforward, with an operational mechanical life of 240 operations per hour and an electrical lifespan of 120 operations per hour, both contributing to its longevity in demanding environments.

Revision Part #Also known as
140G-J3F3-D12 Ser A140G-J3F3-D12/A, Series A, Rev A
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