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Allen Bradley 140G MCB 140G-KC0H3-D40

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140G-KC0H3-D40

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The 140G-KC0H3-D40 is a robust molded case circuit breaker designed by Allen-Bradley, part of the Rockwell Automation family. With a maximum current rating of 400 amps and an impressive interrupting capacity of 100 kA, this unit is suitable for various heavy-duty applications.

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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-KC0H3-D40

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-KC0H3-D40
Weight10.00 lbs (4.54 kg)
FrameKC
Amps400
Interrupting Rating100 kA
Protection TypeElectronic LSI
Current Range400 A
Rated Insulation Voltage1000 V
Rated Impulse Withstand Voltage8 kV
Mechanical Life120 Operations/hr.
Electrical Life60 Operations/hr.
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The Allen-Bradley 140G-KC0H3-D40 is engineered for performance as a molded-case circuit breaker. With a KC frame, this breaker supports a current handling capacity of 400 amps, making it suitable for demanding electrical installations. It also supports current limiting. The interrupting rating of 100 kA underscores its ability to manage fault conditions effectively in high-load scenarios.

Its protection mechanisms are the electronic LSI type, and they are designed to enhance safety and reliability during operation. This circuit breaker is rated for an insulation voltage of 1000 volts, ensuring performance in high-voltage environments. Additionally, it can endure rated impulse withstand voltages of 8 kV, providing resilience against short surges.

At 7.17 pounds, the 140G-KC0H3-D40 is manageable for installation and maintenance tasks. It offers a mechanical life rating of 120 operations per hour, while it supports an electrical life rated at 60 operations per hour, indicating solid durability for ongoing use. This unit serves essential roles in protecting electrical systems in various industrial applications.

Revision Part #Also known as
140G-KC0H3-D40 Ser A140G-KC0H3-D40/A, Series A, Rev A
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