The 140G-J6X3 circuit breaker frame is an Allen-Bradley/Rockwell Automation Bulletin 140G series circuit breaker frame. It is manufactured as a key component for Allen-Bradley Bulletin 140G series molded case circuit breakers. A complete Allen-Bradley Bulletin 140G series molded case circuit breaker includes a frame like the 140G-J6X3 circuit breaker frame and a compatible trip module or trip unit. The current rating of the 140G-J6X3 circuit breaker frame is 250 Amps. This frame can withstand ambient operating temperatures of up to 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-J6X3 |
Product Type | Molded Case Circuit Breaker |
Frame | J |
Amps | 250 |
Interrupting Rating | 65 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-J6X3 circuit breaker is a J Frame only circuit breaker. It has an interrupting capacity of 35 kiloAmps at a voltage of 480 Volts AC. The 140G-J6X3 circuit breaker has a molded case and it supports a thermal-magnetic trip unit. Therefore, the trip’s contacts can be closed and opened many times without damage. The molded case is made of an insulating material such as a glass-polyester hybrid. Apart from providing insulation protection to the internal components, the frame provides a method by which all the required components can be mounted and kept in place. Also, the frame ensures that the breaker is strong enough to deal with the interruption process by comfortably handling the interrupt ratings. Additionally, the 140G-J6X3 circuit breaker, like other circuit breaker frames, provides isolation and insulation of the current path. Consequently, user protection near the 140G-J6X3 circuit breaker is ensured.
The 140G-J6X3 circuit breaker supports fixed mounting. To avoid damaging the breaker or causing injury/death to the users, the 140G-J6X3 circuit breaker should be mounted or installed before the power connections are made. Also, when making connections to the breaker, the power should be disconnected from the system. The Allen-Bradley 140G-J6X3 circuit breaker supports mechanical accessories such as terminal lugs. However, the lugs accommodate different wire sizes. For example, they can support aluminum or copper wires with a size ranging from 2.5 millimeters squared to 50 millimeters squared. Where aluminum only wire is used, the terminal lugs support a size ranging from a minimum of 2.5 millimeters squared to a maximum of 185 millimeters squared. For multiple cables with copper wire, the terminal lug on the 140G-J6X3 circuit breaker accommodates a size ranging from 2.5 and 35 millimeters squared.
Revision Part # | Also known as | |
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140G-J6X3 Ser A | 140G-J6X3/A, Series A, Rev A | Request a quote |
Don't see your particular revision? Contact us now. |
The Allen-Bradley 140G-J6X3 Molded Case Circuit Breaker has a J Frame and 250 Amps. It also has a 65 kA Interrupting Rating and 3 Poles.