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Allen Bradley 140G MCB 140G-N0H3-E12
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140G-N0H3-E12

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The 140G-N0H3-E12 is a rugged molded case circuit breaker from Allen-Bradley, designed specifically for high-demand applications. With a substantial current rating of 1200 Amps, it can handle serious electrical loads, presenting an interrupting capacity of 100 kA. Its electronic LSI protection delivers advanced fault management.

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Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with DO Supply's 2-year warranty.
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Technical specifications for 140G-N0H3-E12

ManufacturerRockwell Automation
BrandAllen-Bradley
Part Number/Catalog No.140G-N0H3-E12
Product TypeMolded Case Circuit Breaker
FrameN
Amps1200
Interrupting Rating100 kA
Protection TypeElectronic LSI
Current Range1200 A
Rated Insulation Voltage1000V
Rated Impulse Withstand Voltage8 kV
Weight21.39 lb
Mechanical Life60 Operations/hr.
Electrical Life60 Operations/hr.
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.

The 140G-N0H3-E12 from Allen-Bradley serves as a high-capacity molded case circuit breaker suitable for demanding electrical systems. Rated at 1200 Amps, it features a N-frame configuration that supports large electrical loads with efficacy. With a fail-safe design, it accommodates an interrupting rating of 100 kA, ensuring robust protection against short circuits and overloads.

This device utilizes electronic LSI protection, providing precise control and prompt response during fault conditions. It is built to handle a current range of 1200 A efficiently, signifying its capability to manage significant electrical currents while maintaining operational reliability.

The 140G-N0H3-E12 boasts a rated insulation voltage of 1000 volts, enabling its use in high-voltage scenarios. Additionally, it can endure impulse withstand voltages up to 8 kV, reinforcing its reliability in the face of electrical surges. Its total weight is 21.39 pounds, making it substantial yet manageable for installation.

Designed for rigorous applications, the circuit breaker has a mechanical life rated for 60 operations per hour, which aligns with its electrical life rating. This consistency indicates long-term operational stability, making the 140G-N0H3-E12 an essential component in advanced electrical systems.

Revision Part #Also known as
140G-N0H3-E12 Ser A140G-N0H3-E12/A, Series A, Rev A
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