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Allen Bradley 140U MCB 140U-J3D3-D17

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140U-J3D3-D17

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The 140U-J3D3-D17 Molded Case Circuit Breaker is a high-performance compact breaker from Allen-Bradley/Rockwell Automation. It has a size J frame, 3 poles, and 250 Amps of frame current rating. The rated operational voltage of the breaker is 400/480 Volts AC, the rated amperage is 175 Amps, and the interrupting rating is 35 Kiloamps.

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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-J3D3-D17

ManufacturerAllen Bradley
CategoryPLCs
Product Line140U MCB
Part Number140U-J3D3-D17
Weight12.00 lbs (5.44 kg)
Product DescriptionMolded Case Circuit Breaker
Frame SizeJ
Frame Rating250 Amps
No. of Poles3
Interrupting Rating35 Kiloamps
Protection TypeFixed Thermal/Adjustable Magnetic
Rated Operational Voltage400/480 Volts AC
Amperage Rating175 Amps
Frequency Rating50/60 Hertz
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The Allen-Bradley 140U-J3D3-D17 Molded Case Circuit Breaker (MCCB) comes with a size J frame, 3 poles, and 250 Amps of frame current rating. It has 400 to 480 Volts AC of rated operational voltage, 175 Amps of current rating, 50/60 Hertz of frequency rating, and 35 Kiloamps of interrupting rating. The protection type of this circuit breaker is the adjustable magnetic and fixed thermal protection type. Its approximate shipping weight is 11.4 pounds. This is a device that is designed to open and close a control circuit. The Allen-Bradley 140U-J3D3-D17 Molded Case Circuit Breaker can automatically open the circuit under specified abnormal conditions. There is an arc chamber within the breaker to provide short circuit protection while stopping the current flow.

The 140U-J3D3-D17 Molded Case Circuit Breaker is CSA listed, UL listed, and KEMA certified in order to compile with various industrial standards. Its compact size and design save considerable space in a panel design. It has minimized downtime compared to a fuse based system because it can be reset and switched on soon after a faulty situation. The 140U-J3D3-D17 MCCB is commonly used as a feeder breaker or a single circuit breaker. It may be used for motor circuits and motor control circuit transformers, but the best options for these applications are the MCP or bulletin 1492 supplementary protectors. This MCCB and its accessories are designed to be field installed. Its compact design ensures reduced space requirements and easy installation. The maintenance mode of the circuit breaker allows for system testing when the MCCB is energized. The Allen-Bradley 140U-J3D3-D17 Molded Case Circuit Breaker can be used in capacitor banks which draw high current in commercial and industrial electrical systems. Its adjustable trip unit ensures a precise response in high current industrial applications while providing maximum flexibility.