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Allen Bradley 140G MCB 140G-J2C4-C50

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140G-J2C4-C50

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The 140G-J2C4-C50 is a molded case circuit breaker designed by Allen-Bradley. This unit offers robust protection and operates with a rated current of 50 Amps and with 250 Amps of maximum current. It supports an interrupting capacity of 25 kA, making it suitable for heavy-duty applications.

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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-J2C4-C50

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-J2C4-C50
Weight10.00 lbs (4.54 kg)
FrameJ
Amps250
Interrupting Rating25 kA
Protection TypeFixed Thermal/ Fixed Magnetic
Poles4
Current Range50 A
Rated Insulation Voltage1000V
Rated Impulse Withstand Voltage8 kV
Mechanical Life240 Operations/hr.
Electrical Life120 Operations/hr.
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The 140G-J2C4-C50 circuit breaker from Allen-Bradley is part of the Bulletin 140G series of breakers produced by Allen-Bradley and Rockwell Automation. This breaker is equipped to handle a maximum current of 250 amps and a rated current of 50 amps for reliability in challenging electrical conditions. It features an interrupting rating of 25 kA and enhances system safety by effectively breaking fault currents.

With a 4-pole configuration, the 140G-J2C4-C50 is designed for various industrial applications. It employs both fixed thermal and fixed magnetic trip options, ensuring reliable operation under various overload and fault conditions. The device is also rated for insulation voltages up to 1000 volts to promote stability in high-voltage environments. Additionally, it can manage impulse withstand voltages of 8 kV to protect systems against transient surges.

This circuit breaker weighs about 7.72 pounds and has a robust yet manageable profile for easy installation. It is designed for longevity with a mechanical life rating of up to 240 operations per hour and an electrical life rating of up to 120 operations per hour, making it suitable for both continuous and demanding applications.

Revision Part #Also known as
140G-J2C4-C50 Ser A140G-J2C4-C50/A, Series A, Rev A
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