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Allen Bradley 140G MCB 140G-J3F3-D11

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140G-J3F3-D11

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The 140G-J3F3-D11 is a molded case circuit breaker designed by Allen-Bradley. Rated for a maximum of 250 Amps, it provides significant protection for electrical systems with an interrupting rating of 35 kA.

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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-D11

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-J3F3-D11
Weight10.00 lbs (4.54 kg)
FrameJ
Amps250
Interrupting Rating35 kA
Protection TypeAdjust Thermal/ Adjust Magnetic
Current Range110 A
Rated Insulation Voltage1000V
Rated Impulse Withstand Voltage8 kV
Mechanical Life240 Operations/hr.
Electrical Life120 Operations/hr.
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The Allen-Bradley 140G-J3F3-D11 molded case circuit breaker serves as a critical component in safeguarding electrical circuits. This breaker is engineered to handle a maximum current capacity of 250 Amps. It is classified within the J-frame designation, providing both effective mechanical support and structural integrity.

The interrupting capacity of 35 kA ensures it can manage fault currents, reducing the risk of damage to downstream equipment. Users can adjust both thermal and magnetic protection settings to better fit specific operational needs, making this product versatile in various applications. The current range of the 140G-J3F3-D11 is specified at 110 Amps, allowing it to operate efficiently in typical electrical scenarios.

Moreover, this circuit breaker has a rated insulation voltage of 1000 volts, designed to function effectively even in demanding environments. It can also withstand impulse voltages rated at 8 kV, adding an extra layer of protection against transient surges.

With a product weight of 5.51 pounds, it is relatively lightweight, facilitating easier installation procedures. The mechanical life of this model is rated at 240 operations per hour, while its electrical life supports approximately 120 operations per hour, ensuring reliable and consistent performance in industrial applications.

Revision Part #Also known as
140G-J3F3-D11 Ser A140G-J3F3-D11/A, Series A, Rev A
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