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Allen Bradley 140G MCB 140G-G3C3-C20

140G-G3C3-C20

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The Allen-Bradley/Rockwell Automation 140G-G3C3-C20 circuit breaker is a fixed thermal and fixed magnetic circuit breaker with a molded case, a Size G frame, and 3 poles. It has been manufactured as part of the Allen-Bradley Bulletin 140G circuit breaker series. The 140G-G3C3-C20 fixed thermal and fixed magnetic circuit breaker supports a thermal trip rating of 20 Amps and a magnetic trip rating of 500 Amps. It is rated to be able to support an 80% continuous operating load. The 140G-G3C3-C20 fixed thermal and fixed magnetic circuit breaker can be mounted in any position needed in most circumstances.

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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-G3C3-C20

ManufacturerEaton Cutler-Hammer
BrandEaton Cutler-Hammer
Part Number/Catalog No.140G-G3C3-C20
Product TypeMolded Case Circuit Breaker
FrameG
Amps125
Interrupting Rating35 kA
Protection TypeFixed Thermal/ Fixed Magnetic
Current Range20 A
Rated Insulation Voltage800 V
Rated Impulse Withstand Voltage8 kV
Weight2.42 lb
Thermal Trip20 A
Magnetic Trip500 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 140G-G3C3-C20 molded-case circuit breaker is used to protect circuits and conduits. This breaker has detection capabilities that act when a short-circuit current is present. Through the breaker’s poles, an interrupting action is performed that stops the current flow. The Allen-Bradley 140G-G3C3-C20 molded-case circuit breaker employs a fixed magnetic and a fixed thermal mechanism to detect current and it has 3 poles to perform the current interrupting action. Once a fault condition has been detected and cleared, the breaker can be put back into operation. The breaker’s 3 poles are connected. For installation, the recommended cables to attach the breaker are those intended for temperatures of 60 to 75 degrees Celsius. Although the breaker has been designed to operate in humid and hot environments, if the temperature exceeds 50 degrees Celsius, its thermal detection mechanism may be affected.

In environments with temperatures is under the 0 degrees Celsius, however, there may be ice formations around the 140G-G3C3-C20 circuit breaker. The breaker can withstand shocks and vibrations of at least 2 to 13.2 Hertz per 1 millimeter. The Allen-Bradley 140G-G3C3-C20 molded-case circuit breaker can be mounted in different positions without diminishing or modifying its performance. However, this feature may still be limited since some regulations, such as the NEC standards, will not allow the breaker to be mounted vertically in the “ON” position, instead of in of the “UP” position. The Allen-Bradley 140G-G3C3-C20 molded-case circuit breaker has a current range of 20 Amps and an interrupting capacity of 25 kA. It operates within 80% of its continuous rating value.

Revision Part #Also known as
140G-G3C3-C20 Ser A140G-G3C3-C20/A, Series A, Rev A
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