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140G-J0X3

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The Allen-Bradley/Rockwell Automation 140G-J0X3 frame is a circuit breaker frame from the Bulletin 140G series. It is designed to host Bulletin 140G series trip modules with Size J frames. The 140G-J0X3 circuit breaker frame and its compatible J-frame trip module together create a complete molded case circuit breaker. It supports 3 poles and 250 Amps of rated current. The 140G-J0X3 circuit breaker frame can tolerate a maximum ambient operating temperature of 40 degrees Celsius or 104 degrees Fahrenheit.

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Technical specifications for 140G-J0X3

Manufacturer	Eaton Cutler-Hammer
Brand	Eaton Cutler-Hammer
Part Number/Catalog No.	140G-J0X3
Product Type	Molded Case Circuit Breaker
Frame	J
Amps	250
Interrupting Rating	100 kA
Protection Type	Breaker Frame
Current Range	Frame Only
Rated Insulation Voltage	1000V
Rated Impulse Withstand Voltage	8 kV
Weight	5.51 lb
Mechanical Life	240 Operations/hr.
Electrical Life	120 Operations/ hr.

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 Allen-Bradley/Rockwell Automation 140G-J0X3 circuit breaker is a 250 Amps circuit breaker. This breaker only features a frame and it has a breaking capacity of 100 kiloAmps at 480 Volts AC. Although the 140G-J0X3 circuit breaker does not feature a trip unit, it can support a thermal-magnetic trip unit. With the breaker’s frame having a current rating of 250 Amps, it is capable of supporting a thermal trip that can withstand a current of between 175 Amps and 250 Amps. Its magnetic trip, on the other hand, can comfortably handle a current ranging from a minimum of 1250 Amps to a maximum of 2500 Amps.

The Allen-Bradley 140G-J0X3 circuit breaker supports the field installation of its trip unit. However, the installation of the trip unit should be performed by a technician who is an expert on circuit breakers and their functionalities. Additionally, all the application requirements should be known before calibrating the trip unit. To avoid injury to the users, adding the trip unit and connections to the 140G-J0X3 circuit breaker should be done after the system power has been disconnected. The breaker’s operating temperature stands at 40 degrees Celsius while its operating humidity is between 5 and 95% without condensation. The 140G-J0X3 circuit breaker belongs to the Allen-Bradley 140G series. Breakers in this family are designed to conserve space, making them easy to mount. Additionally, the 140G-J0X3 circuit breaker, like other molded case circuit breakers in the same family, is approved for global use with its interrupting or breaking capacity rated by international standards such as the CSA, UL, IEC, and CCC.