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Allen Bradley 140G MCB 140G-N5K3-E12-Z1

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140G-N5K3-E12-Z1

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The 140G-N5K3-E12-Z1 circuit breaker is designed for heavy-duty applications. Manufactured by Allen-Bradley under Rockwell Automation, it supports a maximum current of 1200 Amps and has a substantial interrupting rating of 50 kA. It is equipped with electronic LSIG protection for reliable performance.

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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-N5K3-E12-Z1

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-N5K3-E12-Z1
Weight32.00 lbs (14.51 kg)
FrameN
Amps1200
Interrupting Rating50 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 Allen-Bradley 140G-N5K3-E12-Z1 is a robust molded case circuit breaker, engineered to meet the demands of industrial applications. Featuring a maximum capacity of 1200 Amps, it ensures effective management of electrical loads. With its assigned interrupting rating of 50 kA, this device can handle significant fault currents, providing safety and protection in electrical systems.

The circuit breaker incorporates electronic LSIG protection, which enhances the breakdown response during overload and short circuit conditions. The frame type is designated as N, providing a compact design suitable for various installations.

This model operates with a rated insulation voltage of 1000 volts and is capable of withstanding impulse voltages of up to 8 kV, indicating resilience against electrical surges. Weighing 21.39 pounds, the 140G-N5K3-E12-Z1 is manageable for installation processes.

Both the mechanical and electrical life ratings are set at 60 operations per hour, confirming the reliability of this circuit breaker during prolonged use. The 140G-N5K3-E12-Z1 is designed to ensure dependable performance across diverse industrial applications.

Revision Part #Also known as
140G-N5K3-E12-Z1 Ser A140G-N5K3-E12-Z1/A, Series A, Rev A
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