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Allen Bradley 140U MCB 140U-D6D3-C12

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140U-D6D3-C12

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The 140U-D6D3-C12 molded case circuit breaker by Allen Bradley operates at a supply voltage of 480V with a frequency of 60Hz. It features a three-pole configuration and carries a rated current of 12 amperes. Its interrupt rating reaches up to 65 kA, making it suitable for applications with significant fault currents.

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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 of our products come with DO Supply's 2-year warranty.
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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-C12

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140U MCB
Part Number140U-D6D3-C12
Weight0.44 lbs (0.20 kg)
UPC885630141695
Supply Voltage480V 60Hz
Maximum Available Fault Current (at the Breaker)0 kA
Pole Configuration3 Poles
Rated Current (A)12 Amperage
Frame SizeD-Frame (up to 30A)
Interrupt Rating [kA]65 kA
Alarm (Trip) ContactAvailable
Auxiliary ContactAvailable
Auxiliary/Alarm CombinationAvailable
Rotary Op. MechStandard
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The Allen Bradley 140U-D6D3-C12 is a molded case circuit breaker characterized by its durable design and dependable performance. This model is adept at handling a supply voltage of 480 volts at a frequency of 60Hz. With a maximum fault current rating of 0 kA, the device is configured with three poles to seamlessly manage electrical loads. Rated for continuous operation at 12 amperes, this circuit breaker is substantial within its intended scope.

Its D-frame construction supports applications with ratings up to 30 amperes. With an interrupt rating of 65 kA, the 140U-D6D3-C12 can effectively interrupt fault currents, providing a crucial layer of protection for connected circuits. The inclusion of auxiliary contacts ensures that additional functionalities are accessible, which can enhance overall system monitoring and control.

Furthermore, an alarm (trip) contact is included with the unit to signal tripping events effectively. The rotary operating mechanism is designed based on standard specifications, ensuring familiar operational handling. This molded case circuit breaker combines reliability with versatility, making it suitable for various industrial electrical installations.

Revision Part #Also known as
140U-D6D3-C12 Ser A140U-D6D3-C12/A, Series A, Rev A
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