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Allen Bradley 140U MCB 140U-JD3D3-D20

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140U-JD3D3-D20

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The 140U-JD3D3-D20 is a molded case circuit breaker manufactured by Allen Bradley, designed for reliable circuit protection. This device offers a rated current capacity of 200 A and operates effectively at up to 600 VAC with three poles, suitable for various power distribution 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 140U-JD3D3-D20

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140U MCB
Part Number140U-JD3D3-D20
Weight7.50 lbs (3.40 kg)
Frame SizeJD-Frame
Number of Poles3 Poles
Rated Current200 A
Rated Voltage600 VAC
Trip Unit TypeThermal Magnetic
Thermal TripFixed
Magnetic TripAdjustable
Interrupting Capacity at 480 V35 kA
Interrupting Capacity at 240 V65 kA at 480 V
Phase Type3 Phase
Minimum Frequency50 Hz
Maximum Frequency60 Hz
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The model 140U-JD3D3-D20, produced by Allen Bradley, represents a molded case circuit breaker engineered for effective and safe operation. This component is structured to accommodate a rated current of 200 A and functions at a peak voltage of 600 VAC, making it suitable for various electrical applications. The device is configured with three poles, which allows for its utilization in three-phase power systems.

This circuit breaker integrates a trip unit of the thermal magnetic type, featuring a fixed thermal trip for reliable thermal protection and an adjustable magnetic trip for customized response to overload conditions. At 480 V, the interrupting capacity reaches 35 kA, while it is rated at 65 kA when operating at 240 V, underlining its superior ability to manage electrical faults.

Designed for use in a frequency range of 50 to 60 Hz, this breaker fits well within standard industrial operational parameters. The JD-frame size enhances its fit within existing installations. Overall, the Allen Bradley 140U-JD3D3-D20 offers reliable circuit protection for critical electrical infrastructure, ensuring operational safety and compliance.