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Allen Bradley 140G MCB 140G-J0X4

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140G-J0X4

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The 140G-J0X4 is a molded case circuit breaker by Allen-Bradley that is suitable for various industrial applications. It operates with a J-frame and manages a current load of 250 Amps and an interrupting ability rated at 100 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-J0X4

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-J0X4
Weight15.00 lbs (6.80 kg)
FrameJ
Amps250
Interrupting Rating100 kA
Protection TypeBreaker Frame
Poles4
Current RangeFrame Only
Rated Insulation Voltage1000V
Rated Impulse Withstand Voltage8 kV
Mechanical Life240 Operations/hr.
Electrical Life120 Operations/hr.
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The 140G-J0X4 breaker is part of the Allen-Bradley brand from Rockwell Automation, and it is a molded case circuit breaker. This device features a robust J frame that allows it to support a maximum current rating of 250 Amps. It also supports an interrupting rating of 100 kA and provides excellent protection against overcurrents during fault conditions.

The breaker is equipped with four poles that allow it to be used in various circuit configurations. With an insulation voltage rating of 1000V, this circuit breaker is suitable for a range of applications where electrical safety is paramount. It can also manage transient conditions with 8 kV of rated impulse withstand voltage.

Weighing in at 7.72 pounds, the 140G-J0X4 balances durability and practicality, and it is easy to handle and install. Its mechanical life rating is 240 operations per hour, while its electrical life rating is 120 operations per hour. This combination of features affirms its reliability and effectiveness as a critical safety component in electrical systems.

Revision Part #Also known as
140G-J0X4 Ser A140G-J0X4/A, Series A, Rev A
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