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Allen Bradley 140G MCB 140G-G2C3-D12
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140G-G2C3-D12

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The Allen-Bradley 140G-G2C3-D12 molded case circuit breaker is a Bulletin 140G series molded case circuit breaker that provides both fixed thermal and fixed magnetic protection. It is designed to be used as a line protection device for an industrial control panel and it can be installed inside a cabinet if necessary. The thermal trip rating of the 140G-G2C3-D12 molded case circuit breaker is 125 Amps while the magnetic trip rating of this circuit breaker is 1250 Amps. The circuit breaker itself supports a current rating of 125 Amps and a maximum operating temperature of 104 degrees Fahrenheit when it is installed in a cabinet. The 140G-G2C3-D12 molded case circuit breaker can be easily installed because it supports all possible mounting orientations.

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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-G2C3-D12

ManufacturerEaton Cutler-Hammer
BrandEaton Cutler-Hammer
Part Number/Catalog No.140G-G2C3-D12
Product TypeMolded Case Circuit Breaker
FrameG
Amps125
Interrupting Rating25 kA
Protection TypeFixed Thermal/ Fixed Magnetic
Current Range125 A
Rated Insulation Voltage800 V
Rated Impulse Withstand Voltage8 kV
Weight2.42 lb
Thermal Trip125 A
Magnetic Trip1250 A
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-G2C3-D12 circuit breaker is a circuit breaker that protects circuits from an excessive current load. Generally, conduits require protection equipment in order to stop any short-circuit current before it can cause damage. This circuit breaker comes with 2 different detection mechanisms that complement each other. These mechanisms use heat to activate 2 bimetal bars and a magnet that detects a short-circuit current. Once the Allen-Bradley/Rockwell Automation 140G-G2C3-D12 circuit breaker detects any kind of abnormal current, it performs an interrupting action to stop it from entering the conduits. The 3 poles of the breaker interrupt the current flow. Once the condition that made the breaker react is cleared, the breaker can be turned on again and continue its regular operations.

The Allen-Bradley/Rockwell Automation 140G-G2C3-D12 circuit breaker features an interrupting capacity of 25 kA and a current rating of 120 Amps. It is important to mention that the breaker must not be exposed to temperatures higher or lower than 0 to 40 degrees Celsius. Higher temperatures might affect the heat detection mechanisms employed by the circuit breaker. This breaker can be mounted in any position without altering its functions. The cables that are used must be designed for operations at temperatures of at least 75 degrees Celsius. The circuit breaker can operate in hot and humid conditions and it can also resist shocks and vibrations. The Allen-Bradley/Rockwell Automation 140G-G2C3-D12 circuit breaker has internal and external accessories that make its installation process and its performance easy. These accessories are a flanged cable, motor operator, residual current, alarm, and an auxiliary contact, among others.

Revision Part #Also known as
140G-G2C3-D12 Ser A140G-G2C3-D12/A, Series A, Rev A
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