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Allen Bradley 140G MCB 140G-J2X4

Product image is representative; revision or series may vary. Contact us to request a specific version.

140G-J2X4

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The 140G-J2X4 circuit breaker from Allen-Bradley is engineered for high-capacity applications. This molded case circuit breaker is classified with a 250 amp maximum current rating and has a notable interrupting capability of 25 kA, making it suitable for protecting electrical circuits under fault conditions.

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Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All of our products come with DO Supply's 2-year warranty.
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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-J2X4

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-J2X4
Weight3.00 lbs (1.36 kg)
FrameJ
Amps250
Interrupting Rating25 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-J2X4 is a molded case circuit breaker. It is a reliable choice for protecting electrical systems. Manufactured by Allen-Bradley under Rockwell Automation, this unit is rated for a maximum current of 250 amps. One of its standout features is its 25 kW interrupting capacity.

Designed with a J-frame, this breaker accommodates a four-pole setup, offering versatility in applications requiring different types of electrical protection. It operates effectively with a rated insulation voltage of up to 1000 volts, ensuring durability even in high-voltage environments. Furthermore, it can endure impulse voltages rated at 8 kV, protecting against transient disturbances.

Weighing 7.72 pounds, the 140G-J2X4 is built for efficient integration into various electrical panels. It is engineered to support a mechanical life rating of 240 operations per hour, ensuring long-term reliability during regular use. Additionally, it is specified for an electrical life rating of 120 operations per hour, making it a robust option for industrial applications demanding consistent performance.

Revision Part #Also known as
140G-J2X4 Ser A140G-J2X4/A, Series A, Rev A
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