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Allen Bradley 140G MCB 140G-J0C4-C40

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140G-J0C4-C40

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The 140G-J0C4-C40 model from Allen-Bradley functions as a molded case circuit breaker. Engineered for various applications, this unit operates at a rated current of 250 amps with an impressive interrupting capacity of 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-J0C4-C40

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-J0C4-C40
Weight10.00 lbs (4.54 kg)
FrameJ
Amps250
Interrupting Rating100 kA
Protection TypeFixed Thermal/ Fixed Magnetic
Poles4
Current Range40 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-J0C4-C40 is a robust molded case circuit breaker suitable for industrial and commercial applications. With a maximum current rating of 250 amps, it is designed to handle significant electrical loads. An interrupting rating of 100 kA allows it to safely interrupt high fault currents, ensuring system reliability.

The breaker is designed with a frame size classified as J and is equipped with four poles, making it versatile for various configurations. It employs fixed thermal and magnetic protection types, providing reliable trip functions to manage overload and short-circuit conditions effectively.

This unit operates within a current range of 40 amps, with a rated insulation voltage reaching 1000 volts. Additionally, it can withstand impulse voltages up to 8 kV, enhancing its durability in dynamic electrical environments. The overall build weighs 7.72 pounds, making it manageable for installation on systems that require circuit protection.

Designed for longevity, the mechanical life expectancy of the 140G-J0C4-C40 is rated at 240 operations per hour, while it achieves an electrical life of 120 operations per hour. This circuit breaker is a reliable component for ensuring protection and operational effectiveness in diverse electrical applications.

Revision Part #Also known as
140G-J0C4-C40 Ser A140G-J0C4-C40/A, Series A, Rev A
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