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Allen Bradley 140G MCB 140G-NS5K4-E12

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140G-NS5K4-E12

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The 140G-NS5K4-E12 molded case circuit breaker by Allen-Bradley is designed for high-capacity applications. With a remarkable maximum current capacity of 1200 Amps and a dependable interrupting rating of 50 kA, this unit is suitable for critical operations.

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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-NS5K4-E12

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-NS5K4-E12
Weight32.00 lbs (14.51 kg)
FrameNS
Amps1200
Interrupting Rating50 kA
Protection TypeElectronic LSIG
Poles4
Current Range1200 A
Rated Insulation Voltage1000V
Rated Impulse Withstand Voltage8 kV
Mechanical Life60 Operations/hr.
Electrical Life60 Operations/hr.
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Part number 140G-NS5K4-E12 from the Allen-Bradley lineup is a molded case circuit breaker that prioritizes reliability and robust performance in its design. This model stands out with its maximum capacity of 1200 Amps, making it appropriate for duties requiring substantial electrical loads. The device has an interrupting capability rated at 50 kA, which indicates its readiness to manage fault conditions.

Constructed with an NS frame, this circuit breaker features four poles, allowing effective management of electrical circuits. It utilizes electronic LSIG protection, thereby enhancing its safety characteristics. The rated insulation voltage of 1000 volts helps ensure that this breaker performs reliably even in high-voltage scenarios. Additionally, it is designed to withstand impulse voltages as high as 8 kV, providing an added layer of protection against surges.

Weighing 27.56 pounds, this unit has been engineered for both mechanical and electrical longevity, rated for up to 60 operations per hour in each category. The 140G-NS5K4-E12 serves as a critical component in various industrial applications, ensuring safety and effective control over electrical distribution systems.

Revision Part #Also known as
140G-NS5K4-E12 Ser A140G-NS5K4-E12/A, Series A, Rev A
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