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Allen Bradley 140U MCB 140U-J6L3-C50

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140U-J6L3-C50

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The Allen Bradley 140U-J6L3-C50 is a three-pole molded case circuit breaker designed for robust electrical protection. It features a rated operational current of 50 A and operates within a temperature range of -25°C to 70°C, ensuring reliability in diverse 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 140U-J6L3-C50

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140U MCB
Part Number140U-J6L3-C50
Weight3.00 lbs (1.36 kg)
Frame SizeJ-Frame
Rated Operational Current50 A
Number of Poles3 poles
Breaking Capacity at 400/415V AC70 kA
Breaking Capacity at 480V AC65 kA
Breaking Capacity at 600V AC25 kA
Breaking Capacity at 690V AC20 kA
Min. Frequency50 Hz
Max. Frequency60 Hz
Min. Operating Temperature-25°C
Max. Operating Temperature70°C
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The 140U-J6L3-C50 molded case circuit breaker by Allen Bradley is engineered to provide reliable electrical protection across several applications. This breaker operates with a rated current of 50 A, making it suitable for medium-duty operations. Featuring a J-Frame design, it is built to handle multiple electrical loads.

Given its three-pole configuration, this device enhances circuit protection capabilities. The 140U-J6L3-C50 has a high breaking capacity, rated at 70 kA for applications on 400/415V AC systems, ensuring effective fault clearing. For applications at 480V AC, this circuit breaker maintains a breaking capacity of 65 kA. Its operational limits extend to a breaking capacity of 25 kA at 600V AC and 20 kA at 690V AC, underscoring its robustness.

This circuit breaker is engineered to function within frequency ranges from 50 Hz to 60 Hz, accommodating a variety of system requirements. Furthermore, it demonstrates reliable performance in temperature conditions, operating effectively from a minimum of -25°C to a maximum of 70°C. This broad temperature range makes the 140U-J6L3-C50 suitable for installations in diverse environments, ensuring continued functionality under varying thermal conditions.