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Allen Bradley 140U MCB 140UE-L3X4

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140UE-L3X4

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The Allen Bradley 140UE-L3X4 is a molded case circuit breaker designed to handle a significant current of 630 A. This three-pole unit is part of the Bulletin 140UE series and offers robust application performance. With an L-frame design, it has a substantial power capacity ranging between 30 and 39 kA, making it suitable for demanding environments.

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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 140UE-L3X4

ManufacturerAllen Bradley
Product TypeCircuit Breaker
Product Line140U MCB
Part Number140UE-L3X4
Weight12.00 lbs (5.44 kg)
CategoryMolded Case Circuit Breaker
Current630 A
Poles3
FrameL-Frame
Power30-39 kA
Ambient Temperature0 to 60 degrees Celsius
Relative Humidity5 to 95% Without Condensation
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The 140UE-L3X4 is a pivotal component from Allen Bradley's Bulletin 140UE series, classified as a molded case circuit breaker. Engineered to manage up to 630 A of current, this device is particularly efficient for industrial applications requiring reliable circuit protection. It features a three-pole design, which enhances its versatility in different configurations.

The circuit breaker falls under the L-frame category. Its power rating ranges between 30 kA and 39 kA, which means it can effectively handle short-circuit conditions. This specification reinforces its reliability in scenarios demanding higher performance.

Operating effectively in temperatures from 0 to 60 degrees Celsius, the 140UE-L3X4 maintains its efficacy in dynamic environments. Additionally, it can withstand relative humidity levels from 5% to 95% without condensation, extending its application in diverse settings. The circuit breaker weighs approximately 5.44 kg, making it a robust yet manageable component for installation in various electrical systems.