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Allen Bradley 140U MCB 140U-K-EA2

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140U-K-EA2

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The 140U-K-EA2 part from Allen Bradley is classified as an auxiliary contact designed specifically for the K-400 Series circuit breakers. It delivers a current rating of 400 A and is compatible with both thermal magnetic and electronic trip unit technologies.

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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 of our products come with DO Supply's 2-year warranty.
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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 140U-K-EA2

ManufacturerAllen Bradley
Product TypeAuxiliary Contact
Product Line140U MCB
Part Number140U-K-EA2
Weight0.13 lbs (0.06 kg)
Compatible Circuit BreakerK-400 Series
Compatible Breaker Trip Unit TechnologyThermal Magnetic/Electronic
Frame TypeK Frame
Current Rating400 A
Mounting LocationRight and Left Side
Thermal Magnetic Current Range15 to 800 A
Electronic Current Range70 to 1200 A
Switch Current Rate125 to 1200 A
Interrupting Rating @ 380-415 V65 kA
Interrupting Rating @ 600 V35 kA
Interrupting Rating @ 690 V13 kA
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The Allen Bradley 140U-K-EA2 functions as an auxiliary contact specifically tailored for use with the K-400 Series circuit breakers. This component operates with a robust current rating of 400 A, making it suitable for a range of applications. The auxiliary contact is designed to seamlessly integrate with thermal magnetic and electronic trip unit technologies, enhancing its functionality in various environments.

Its design allows for mounting on either the right or left side, providing flexibility during installation. It can handle thermal magnetic current levels from 15 A up to 800 A, alongside the capability to manage electronic current values from 70 A to 1200 A effectively. The switch current rating of this auxiliary contact ranges from 125 A to 1200 A.

For safety and reliability, it has several interrupting ratings: 65 kA when used at 380-415 V, 35 kA at 600 V, and 13 kA at 690 V. This versatility in current handling and interrupting capacity makes the 140U-K-EA2 a valuable addition to electrical systems, ensuring effective overcurrent protection and system integrity.