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Allen Bradley 140G MCB 140G-G3C4-C30

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140G-G3C4-C30

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The 140G-G3C4-C30 is a molded case circuit breaker designed by Allen-Bradley, part of Rockwell Automation. This device features a G frame and operates across 4 poles, accommodating a maximum current of 125 amps.

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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-G3C4-C30

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-G3C4-C30
Weight10.00 lbs (4.54 kg)
FrameG
Amps125
Interrupting Rating35 kA
Protection TypeFixed Thermal/ Fixed Magnetic
Poles4
Current Range30 A
Rated Insulation Voltage800 V
Rated Impulse Withstand Voltage8 kV
Thermal Trip30 A
Magnetic Trip500 A
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The Allen-Bradley 140G-G3C4-C30 molded case circuit breaker, produced by Rockwell Automation, is engineered for dependable protection in electrical circuits. It supports a robust frame size designated as G and is capable of carrying a maximum current of 125 amps. This circuit breaker contains 4 poles, allowing for diverse applications that require multiple circuits to be managed simultaneously. Its thermal trip setting is calibrated to activate at 30 amps, while the magnetic trip engages at a considerably higher threshold of 500 amps, ensuring critical components are safeguarded against both overload and short circuit issues.

Designed for performance, the 140G-G3C4-C30 offers a dependable interrupting rating of 35 kA, which is essential for minimizing the risk of damage or failure during fault conditions. This unit's rated insulation voltage is specified at 800 volts, positioning it well for various industrial uses, while the rated impulse withstand voltage of 8 kV protects sensitive equipment from surges and transients. Weighing 3.08 pounds, this circuit breaker is compact yet robust, making it a practical choice for installation in multiple settings.

Revision Part #Also known as
140G-G3C4-C30 Ser A140G-G3C4-C30/A, Series A, Rev A
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