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Allen Bradley 140G MCB 140G-J6X3
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140G-J6X3

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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.

Ships Wed, May 14.
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Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with DO Supply's 2-year warranty.
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Technical specifications for 140G-J6X3

ManufacturerEaton Cutler-Hammer
BrandEaton Cutler-Hammer
Part Number/Catalog No.140G-J6X3
Product TypeMolded Case Circuit Breaker
FrameJ
Amps250
Interrupting Rating65 kA
Protection TypeBreaker Frame
Current RangeFrame Only
Rated Insulation Voltage1000V
Rated Impulse Withstand Voltage8 kV
Weight5.51 lb
Mechanical Life240 Operations/hr.
Electrical Life120 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.

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
140G-J6X3 Ser A140G-J6X3/A, Series A, Rev A
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