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Allen Bradley 140G MCB 140G-J3H3-C40

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140G-J3H3-C40

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Designed for a robust operational environment, the 140G-J3H3-C40 from Allen-Bradley functions as an efficient molded case circuit breaker. It features electronic LSI for enhanced protection, managing up to 250 Amps and interrupting capacities rated at 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-J3H3-C40

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-J3H3-C40
Weight10.00 lbs (4.54 kg)
FrameJ
Amps250
Interrupting Rating35 kA
Protection TypeElectronic LSI
Current Range40 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-J3H3-C40 is a molded case circuit breaker engineered to offer dependable performance for industrial applications. With a frame size classified as J, this breaker can handle up to 250 Amps effectively. It is built to support a substantial interrupting capacity rated at 35 kA, suitable for safeguarding critical electrical circuits against overload conditions.

The device utilizes an electronic LSI protection scheme, which enables the breaker to monitor and react to varying current levels swiftly. This model handles a current range up to 40 A. Its insulation capabilities are notable, featuring a rated insulation voltage of 1000 V and an impulse withstand rating of 8 kV.

Weighing in at 5.51 pounds, the unit remains manageable for installation purposes. It also boasts impressive longevity, designed with a mechanical life rating of 240 operations per hour and an electrical life of 120 operations per hour. The 140G-J3H3-C40 circuit breaker is structured to deliver effective protection and reliable functioning in electrical systems.

Revision Part #Also known as
140G-J3H3-C40 Ser A140G-J3H3-C40/A, Series A, Rev A
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