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Allen Bradley 140G MCB 140G-R12I4-E20

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140G-R12I4-E20

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The 140G-R12I4-E20 is a heavy-duty molded case circuit breaker from Allen-Bradley. It operates within a significant amperage range of 2500 to 3000 Amps, featuring electronic LSIG protection and a high interrupting rating of 125 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-R12I4-E20

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-R12I4-E20
Weight32.00 lbs (14.51 kg)
FrameR
Amps2500-3000
Interrupting Rating125 kA
Protection TypeElectronic LSIG
Poles4
Current Range2000 A
Rated Insulation Voltage1000 V
Rated Impulse Withstand Voltage12 kV
Mechanical Life60 Operations/hr.
Electrical Life60 Operations/hr.
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The Allen-Bradley 140G-R12I4-E20 represents a robust solution for circuit protection. This molded case circuit breaker boasts an amperage capacity that spans from 2500 to 3000 Amps, ensuring reliability in demanding electrical environments. The device employs electronic LSIG protection, which aids in monitoring and responding to overload situations effectively.

It is constructed with four poles and provides an interrupting rating of 125 kA, making it fit for handling high fault currents. The current range capability of this breaker is up to 2000 Amps, offering versatility in various applications. With a rated insulation voltage of 1000 volts, it accommodates high-voltage operations securely. Furthermore, it tolerates rated impulse withstand voltages of 12 kV, allowing it to withstand transient electrical disturbances.

Weighing in at a substantial 175 pounds, the 140G-R12I4-E20 is engineered for reliable performance across its lifecycle. The mechanical and electrical life ratings at 60 operations per hour suggest this breaker is designed for continual operation, serving a critical role in industrial and commercial electrical systems.

Revision Part #Also known as
140G-R12I4-E20 Ser A140G-R12I4-E20/A, Series A, Rev A
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