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Allen Bradley 140G MCB 140G-N0I4-E12

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140G-N0I4-E12

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The 140G-N0I4-E12 is a robust molded case circuit breaker from Allen-Bradley. It is rated for 1200 Amps and features an impressive interrupting capacity of 100 kA. This model is equipped with electronic LSIG protection and operates with four poles.

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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-N0I4-E12

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-N0I4-E12
Weight32.00 lbs (14.51 kg)
FrameN
Amps1200
Interrupting Rating100 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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The Allen-Bradley 140G-N0I4-E12 molded case circuit breaker is engineered to deliver high-performance protection in electrical systems. Operating at a substantial rating of 1200 Amps, it is suitable for large-scale applications. This breaker features an interrupting rating of 100 kA, providing significant fault protection.

Constructed with electronic LSIG protection, the unit ensures comprehensive safety for circuits under various conditions. Its four-pole design facilitates effective management of multi-phase systems. The frame designation is N, which fits a wide range of installation requirements.

In terms of electrical limits, the unit operates at a rated insulation voltage of 1000 volts, making it appropriate for high-voltage applications. The rated impulse withstand voltage reaches 8 kV, providing extra resilience against voltage spikes.

With a weight of 27.56 pounds, this circuit breaker is robust yet manageable. It is designed for a mechanical and electrical lifecycle of 60 operations per hour, ensuring consistent and reliable performance during its use in critical infrastructure.

Revision Part #Also known as
140G-N0I4-E12 Ser A140G-N0I4-E12/A, Series A, Rev A
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