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Allen Bradley 140U MCB 140U-K6D3-D20
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 our products come with DO Supply's 2-year warranty.
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140U-K6D3-D20

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The Allen-Bradley/Rockwell Automation 140U-K6D3-D20 circuit breaker is a thermal/magnetic type of circuit breaker with a molded case and a Size K frame. It has been designed and manufactured as a member of the Allen-Bradley Bulletin 140U series. The 140U-K6D3-D20 thermal/magnetic circuit breaker specifically provides fixed thermal and adjustable magnetic circuit protection to a variety of industrial systems. Its interrupting rating is 65 kiloamps at 400 Volts and at 480 Volts. The 140U-K6D3-D20 thermal/magnetic circuit breaker has 3 poles.

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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 our products come with DO Supply's 2-year warranty.
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Technical specifications for 140U-K6D3-D20

BrandAllen-Bradley / Rockwell Automation
Series140U MCB
Part Number140U-K6D3-D20
FamilyBulletin 140U
Type140U
FrameK
Poles3
Supply Voltage480V
Interrupting Rate65 kA
Rated Current200A
AIC Rating65 kA at 480V
Ambient Temperature104 degrees Fahrenheit (40 degrees Celsius)
Storage temperature-40 to 176 degrees Fahrenheit (-40 to 80 degrees Celsius)
Dimensions140 x 108.5 x 205 mm
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.

The Allen-Bradley 140U-K6D3-D20 Molded Case Circuit Breaker (MCCB) has a supply voltage rating of 480 Volts, an interrupting rate of 65 kA, a rated current of 200 Amps, and a 3-poleĀ configuration and it isĀ factory assembled. The internal control modules are factory installed and mounted in 2Ā different locations that are either the left side or right side. The modules mounted on the left side of the molded case circuit breakers include the Shunt Trip (SNT) and the Undervoltage Release (UVT) modules. On the right side of the circuit breaker, there areĀ internal modules such as an Auxiliary Contact (AX), an Alarm Contact (AL) and an Auxiliary/ Alarm Contact (AX/AL) combination module. The 140U-K6D3-D20 Circuit Breaker that is manufactured by Allen-Bradley/Rockwell Automation conformsĀ to international standards including the UL489, CSA22.2 (No.5), and IEC 60947-2 standards. It has also been accredited with international certifications such as the CCC, UL List, CSA, CSA, and CE Mark standards. It provides an option for current-limiting that offers a half-cycle interrupt to limit the let-through energy.

The main function of the Allen-Bradley 140U-K6D3-D20 Circuit Breaker is to protect the circuits against short-circuit, ground fault, and overload situations. It has an electronic trip unit rated at up to 400 Amps and it has an Ampere Interrupting Capacity (AIC) rating of 65 kA atĀ 480 Volts. The K-Frame circuit breakers like this one have a maintenance mode that temporarily activates lower current trips during operationsĀ for instance inspection or maintenance processes. The MCCB will respond faster to a surge in the current like a low-level arcing fault, shortening the time that is needed to react and it allows energy to be present during these events. The circuit breaker has a maximumĀ ambient temperature of 104 degrees Fahrenheit (40 degrees Celsius). The storage temperature range is fromĀ -40 to 176 degrees Fahrenheit (-40 to 80 degrees Celsius) and dimensions of 140 x 108.5 x 205 millimeters.

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