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Allen Bradley 140G MCB 140G-H0X3
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140G-H0X3

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The Allen-Bradley/Rockwell Automation 140G-H0X3 frame is a breaker frame from the Bulletin 140G series. This breaker frame can be combined with a trip unit from the Allen-Bradley Bulletin 140G series to create a complete MCCB or molded case circuit breaker that can protect the main circuits and the branch circuits of a control panel. The 140G-H0X3 breaker frame supports 3 poles. Its current rating is 125 Amps. The 140G-H0X3 breaker frame is meant to operate at ambient temperatures between 0 and 40 degrees Celsius or 32 and 104 degrees Fahrenheit.

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Technical specifications for 140G-H0X3

ManufacturerEaton Cutler-Hammer
BrandEaton Cutler-Hammer
Part Number/Catalog No.140G-H0X3
Product TypeMolded Case Circuit Breaker
FrameH
Amps125
Interrupting Rating100 kA
Protection TypeBreaker Frame
Current RangeFrame Only
Rated Insulation Voltage1000 V
Rated Impulse Withstand Voltage8 kV
Weight2.65 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 140G-H0X3 circuit breaker is a product of Cutler-Hammer, a division of the Eaton Corporation. The 140G-H0X3 circuit breaker is classified under the 140G series of Eaton Cutler-Hammer molded case circuit breakers. The National Electrical Manufacturers Association (NEMA) defines the 140G-H0X3 circuit breaker as a device that has been designed to open or close the circuit through non-automatic means, which opens the circuit automatically at the predetermined overcurrent levels. The 140G-H0X3 circuit breaker features diagnostic LEDs. All the LEDs in the relay should come on under normal operating circumstances. The last-trip LED comes on whenever a trip has occurred. The 140G-H0X3 circuit breaker comes with a current rating of 125 Amps. The interrupting rating is 100 kA and the unit comes with an H frame.

The 140G-H0X3 circuit breaker provides overcurrent protection when it is used in an industrial control panel application. The 140G-H0X3 circuit breaker also provides thermal protection for the control panel either through the use of the bimetallic heater elements as used in the overload relays or by using the electronics that simulate the operation of the heater element to provide adjustable overcurrent protection for the application. During the installation or servicing of the 140G-H0X3 circuit breaker, ensure that no power source is connected to the 140G-H0X3 circuit breaker. This is to prevent potential electrical shock. In addition, to provide the 140G-H0X3 circuit breaker with proper protection from environmental contaminants, ensure that installation is made in the recommended enclosure. When installing the unit, use a cable or an insulated busbar to perform the specific type test on the installation. The 140G-H0X3 circuit breaker should not be reverse wired above 480 Volts.

Revision Part #Also known as
140G-H0X3 Ser A140G-H0X3/A, Series A, Rev A
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