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140U-J3D3-D22

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The Allen-Bradley/Rockwell Automation 140U-J3D3-D22 circuit breaker from the Bulletin 140U series comes with a molded case, 3 poles, a Size J frame, and a non-interchangeable thermal-magnetic trip unit. It can be used to protect the circuits in a variety of industrial systems, and it can be installed in a cabinet for protection from dust and moisture. The 140U-J3D3-D22 circuit breaker supports breaking capacities of 35 Amps at 480 Volts and 40 Amps at 400 Volts. The users can adjust the breaker’s magnetic trip ratings, but not its thermal trip rating. The 140U-J3D3-D22 circuit breaker can operate at ambient temperatures between 32 and 104 degrees Fahrenheit.

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Technical specifications for 140U-J3D3-D22

Brand	Allen-Bradley / Rockwell Automation
Series	140U MCB
Part Number	140U-J3D3-D22
Description	Molded Case Circuit Breaker
Voltage	600 Volts AC
Poles	3
Phase	3
Interrupt	45 kA
Current	225 Amperes
Temperature	-8 and 60 degrees Celsius
Altitude	2000 meters

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.

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The 140U-J3D3-D22 circuit breaker is a Bulletin 140U series circuit breaker device. It has been designed and manufactured by Allen-Bradley. It can provide protection to 3 circuits at a time with its 3 poles. It is a 3-phase circuit breaker with a current rating of 225 Amps. It has a voltage rating of 600 Volts. The interrupt rating of the circuit breaker is 35 kA at 480 Volts. It can trip for both thermal and magnetic overload conditions. The trip feature is fixed in this circuit breaker variant. The 140U-J3D3-D22 circuit breaker is enclosed inside a molded case. An on/off lever is present in the front panel to power the circuit breaker on and off. Along with the power switch, a red button is available which can trip the circuit manually. This is usually done to test the breaking functionality of the circuit breaker. The front part comes with both line and load side lug terminals.

The 140U-J3D3-D22 circuit breaker is able to withstand different interrupt ratings with a frequency of 50/60 Hertz. The circuit breaker complies with different industrial and environmental standards. The environment temperature should be maintained between -8 and 60 degrees Celsius. The humidity can only reach a maximum level of 95% non-condensing relative humidity for regular operation. The circuit breaker can be used easily at up to an altitude of 2000 meters above sea level without losing its efficiency. During the installation of the 140U-J3D3-D22 circuit breaker, the main power supply to the breaker should be properly disconnected to avoid electrical hazards and injuries. The airflow between the breaker and the ventilation source for the circuit breaker should not be obstructed.