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Allen Bradley 140G MCB 140G-J3H4-C40

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140G-J3H4-C40

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The 140G-J3H4-C40 from Allen-Bradley represents a high-capacity molded case circuit breaker. It is designed to handle a maximum current of 250 Amps and offers substantial circuit protection with an interrupting capacity 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-J3H4-C40

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-J3H4-C40
Weight10.00 lbs (4.54 kg)
FrameJ
Amps250
Interrupting Rating35 kA
Protection TypeElectronic LSI
Poles4
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-J3H4-C40 is engineered as a molded case circuit breaker, allowing efficient management of electrical loads. Its frame classification is J, with a robust capacity of 250 Amperes. This breaker has an interrupting rating of 35 kA, enabling it to effectively address fault conditions in electrical systems.

Incorporating electronic LSI protection, this unit ensures reliable operation under various circumstances. The design includes four poles and operates within a current range of 40 A, making it adaptable for diverse applications. It features a rated insulation voltage of 1000 volts, securing it for service in high-voltage conditions, while its rated impulse withstand voltage reaches 8 kV for handling transient surges.

The 140G-J3H4-C40 weighs 7.72 pounds, making it manageable for installation and maintenance tasks. With a mechanical life rated at 240 operations per hour and an electrical life rated at 120 operations per hour, this circuit breaker is built for longevity and durability in demanding environments.

Revision Part #Also known as
140G-J3H4-C40 Ser A140G-J3H4-C40/A, Series A, Rev A
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