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Allen Bradley 140U MCB 140U-D6D3-A50

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140U-D6D3-A50

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The 140U-D6D3-A50 circuit breaker from Allen Bradley is a thermal-magnetic device designed with three poles. It features a rated current of 0.5 amps, which makes it suitable for applications requiring reliable circuit protection.

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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-D6D3-A50

ManufacturerAllen Bradley
Product TypeCircuit breaker
Product Line140U MCB
Part Number140U-D6D3-A50
UPC885630141961
Weight3.00 lbs (1.36 kg)
Poles3 poles
Trip TypeThermal-magnetic
Rated Current0.5 Amps
Magnetic Trip15 to 20 x In
Ultimate Breaking Capacity at 400 to 415 VAC100 kA
Ultimate Breaking Capacity at 525 VAC65 kA
Ultimate Breaking Capacity at 695 VAC50 kA
Interrupting Rating at 240 VAC100 kA
Interrupting Rating at 480Y/277V100 kA
Interrupting Rating at 600Y/347V50 kA
ApprovalsUL489
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The Allen Bradley 140U-D6D3-A50 circuit breaker serves as a critical component for electrical protection. This unit boasts three operating poles and employs a thermal-magnetic trip mechanism. With a rated current of 0.5 amps, it is designed for effective usage in low current applications. The magnetic trip activates at 15 to 20 times the nominal current, providing an added layer of safety against short circuits and overloads.

This breaker demonstrates excellent performance with an ultimate breaking capacity of 100 kA when used within the voltage range of 400 to 415 VAC. Furthermore, it maintains a breaking capacity of 65 kA at 525 VAC, and 50 kA at 695 VAC. The device is equipped with impressive interrupting ratings, notably reaching 100 kA for both 240 VAC and 480Y/277V scenarios, and 50 kA at 600Y/347V. Besides its robust performance specifications, the 140U-D6D3-A50 conforms to UL489 approval standards, ensuring quality and reliability for various electrical systems.

Revision Part #Also known as
140U-D6D3-A50 Ser A140U-D6D3-A50/A, Series A, Rev A
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