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Allen Bradley 140G MCB 140G-NS0K3-E12

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140G-NS0K3-E12

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The 140G-NS0K3-E12 is a molded case circuit breaker that operates under the Allen-Bradley brand from Rockwell Automation. This device is rated for a maximum of 1200 Amps and features an interrupting capacity of 100 kA, offering superior protection in electrical systems.

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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-NS0K3-E12

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-NS0K3-E12
Weight32.00 lbs (14.51 kg)
FrameNS
Amps1200
Interrupting Rating100 kA
Protection TypeElectronic LSIG
Current Range1200 A
Rated Insulation Voltage1000V
Rated Impulse Withstand Voltage8 kV
Mechanical Life60 Operations/hr.
Electrical Life60 Operations/hr.
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The 140G-NS0K3-E12 molded case circuit breaker from Allen-Bradley is engineered for robust safety in electrical applications. It is constructed with an NS frame and is fully capable of handling a current rating of 1200 Amps. This circuit breaker stands out with a high interrupting rating of 100 kA, essential for preventing damage during fault conditions.

Employing electronic LSIG protection, the device accurately monitors and manages overcurrent, short circuit, and ground fault scenarios. The rated insulation voltage of 1000 volts indicates its reliability in high-voltage environments, while the rated impulse withstand voltage of 8 kV suggests significant resilience against voltage spikes.

With a weight of 27.56 pounds, the 140G-NS0K3-E12 is both durable and adequately compact for installation in various locations. It maintains a consistent mechanical life of 60 operations per hour, ensuring dependable performance over time, alongside an electrical life that is also rated for 60 operations per hour. This circuit breaker is built for continuous use, making it an integral part of industrial and commercial electrical systems.

Revision Part #Also known as
140G-NS0K3-E12 Ser A140G-NS0K3-E12/A, Series A, Rev A
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