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Allen Bradley 140G MCB 140G-R12I3-E20-Z1

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140G-R12I3-E20-Z1

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The 140G-R12I3-E20-Z1 is a robust molded case circuit breaker designed by Allen-Bradley, part of Rockwell Automation. This device is engineered to handle significant electrical loads with a current capacity ranging from 2500 to 3000 amps, ensuring it meets extensive operational demands.

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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-R12I3-E20-Z1

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-R12I3-E20-Z1
Weight32.00 lbs (14.51 kg)
FrameR
Amps2500-3000
Interrupting Rating125 kA
Protection TypeElectronic LSIG
Current Range2000 A
Rated Insulation Voltage1000V
Rated Impulse Withstand Voltage12 kV
Mechanical Life60 Operations/hr.
Electrical Life60 Operations/hr.
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The Allen-Bradley 140G-R12I3-E20-Z1 molded case circuit breaker stands out in the category of high-capacity protection devices. Rated for a current range of 2500 to 3000 Amps, it is fitted for environments demanding robust performance. The design incorporates an interrupting capability of 125 kA, allowing it to effectively manage electrical faults while ensuring system integrity.

This model belongs to the R-frame series and utilizes electronic LSIG technology, which adds versatility to its protective features. It can handle up to 2000 A of current efficiently. The breaker is rated at 1000 volts for insulation, making it suitable for high-voltage applications. Additionally, the unit can withstand impulse voltages of up to 12 kV, addressing the need for reliability in high-stress electrical conditions.

Weighing 175 pounds, the 140G-R12I3-E20-Z1 is robust yet manageable during installation. The durability of this circuit breaker is noted in its mechanical and electrical operation ratings, both set at 60 operations per hour, indicating its readiness for repeated use in various industrial applications. This molded case circuit breaker is a pivotal component for ensuring effective electrical protection in substantial load settings.

Revision Part #Also known as
140G-R12I3-E20-Z1 Ser A140G-R12I3-E20-Z1/A, Series A, Rev A
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