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Allen Bradley 140G MCB 140G-KC6H3-D40

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140G-KC6H3-D40

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The 140G-KC6H3-D40 is a molded-case circuit breaker from Allen-Bradley. It operates efficiently with a current capacity of 400 Amps. This model is equipped with electronic LSI protection and boasts an interrupting rating of 65 kA, ensuring robust performance during fault conditions.

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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-KC6H3-D40

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-KC6H3-D40
Weight10.00 lbs (4.54 kg)
FrameKC
Amps400
Interrupting Rating65 kA
Protection TypeElectronic LSI
Current Range400 A
Rated Insulation Voltage1000V
Rated Impulse Withstand Voltage8 kV
Mechanical Life120 Operations/hr.
Electrical Life60 Operations/hr.
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The Allen-Bradley 140G-KC6H3-D40 is a precise solution for electrical systems requiring thorough protection. Designed as a molded case circuit breaker, it is rated for 400 Amps and features the KC frame type. Its electronic LSI protection system delivers consistent safety against overload and short-circuit events. The unit has a significant interrupting rating of 65 kA, which allows it to effectively handle high fault currents and enhance overall system reliability.

It can accept a rated insulation voltage of up to 1000 volts, making it suitable for high-voltage applications. Furthermore, this breaker withstands impulse voltages rated at 8 kV, ensuring durability against transient conditions.

At 7.17 pounds, the 140G-KC6H3-D40 can be integrated into existing systems with minimal effort. Its mechanical lifespan is rated for 120 operations per hour, while the electrical lifespan is approximately 60 operations per hour, confirming its reliability in rigorous environments. This unit is an important component in maintaining effective circuit protection for various industrial applications.

Revision Part #Also known as
140G-KC6H3-D40 Ser A140G-KC6H3-D40/A, Series A, Rev A
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