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Allen Bradley 140G MCB 140G-J3C4-C30

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140G-J3C4-C30

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The 140G-J3C4-C30 is a high-capacity molded case circuit breaker crafted by Allen-Bradley. With a maximum rated current of 250 Amps, this breaker can handle significant loads and provide effective protection in various 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-J3C4-C30

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-J3C4-C30
Weight10.00 lbs (4.54 kg)
FrameJ
Amps250
Interrupting Rating35 kA
Protection TypeFixed Thermal/ Fixed Magnetic
Poles4
Current Range30 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-J3C4-C30 is a durable molded case circuit breaker ideal for safeguarding electrical circuits. Its rated current is 30 Amps. It is designed with a J-frame structure and has a maximum rated current capacity of 250 Amps, ensuring ample protection across multiple applications. This unit operates with four poles and includes fixed thermal and magnetic trip options, allowing for reliable and accurate protection against overloads and short circuits.

With an interrupting rating of 35 kA, the breaker can manage significant fault conditions in demanding environments. The breaker's rated insulation voltage is 1000 volts, and it has a rated impulse withstand voltage of 8 kV, reflecting its robustness against transient surges. Weighing 7.72 lbs., the 140G-J3C4-C30 is sturdy and easy to handle and install, making it a practical solution for many different systems.

This circuit breaker is designed for heavy-duty use. Its mechanical life is 240 operations per hour, and its electrical life is 120 operations per hour. Its combination of features makes it suitable for applications needing dependable circuit protection without compromising performance.

Revision Part #Also known as
140G-J3C4-C30 Ser A140G-J3C4-C30/A, Series A, Rev A
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