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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Manufacturer | Eaton Cutler-Hammer |
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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. |
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.
Revision Part # | Also known as | |
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140G-J0X3 Ser A | 140G-J0X3/A, Series A, Rev A | Request a quote |
Don't see your particular revision? Contact us now. |
The Allen-Bradley 140G-J0X3 Molded Case Circuit Breaker has a J Frame and 250 Amps. It also has a 100 kA Interrupting Rating and 3 Poles.