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Allen Bradley 140G MCB 140G-G3C4-C20

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140G-G3C4-C20

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The Allen-Bradley 140G-G3C4-C20 is a molded case circuit breaker engineered for effective electrical protection. It features a 125 Amp capacity and operates with four poles, making it suitable for various applications.

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Ships from Raleigh, NC
2 Year DO Supply Warranty
Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All of our products come with DO Supply's 2-year warranty.
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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-C20

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-G3C4-C20
Weight6.63 lbs (3.01 kg)
FrameG
Amps125
Interrupting Rating35 kA
Protection TypeFixed Thermal/ Fixed Magnetic
Poles4
Current Range20 A
Rated Insulation Voltage800 V
Rated Impulse Withstand Voltage8 kV
Thermal Trip20 A
Magnetic Trip500 A
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The 140G-G3C4-C20, manufactured by Rockwell Automation under the Allen-Bradley brand, serves as a robust molded case circuit breaker. It is rated at 125 Amps and features a G frame design, making it suitable for various electrical configurations. This model includes four poles for enhancing circuit protection and flexibility. Designed with safety in mind, it integrates fixed thermal and magnetic protection systems to guard against overload and short circuits.

In terms of performance, the 140G-G3C4-C20 maintains an interrupting capacity of 35 kA, which is essential for minimizing damage during electrical faults. It operates effectively within a current range of 20 Amps while also providing a thermal trip setting at 20 Amps and a magnetic trip threshold of 500 Amps. The insulation voltage rating is noteworthy at 800 volts, supporting its application in demanding environments. Furthermore, the rated impulse withstand voltage of 8 kV adds another layer of reliability, assuring users of its capability to withstand voltage surges and protect the connected circuits accordingly.

Weighing 3.08 lbs, this circuit breaker blends compactness and durability, making it a practical choice for industrial and commercial settings.

Revision Part #Also known as
140G-G3C4-C20 Ser A140G-G3C4-C20/A, Series A, Rev A
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