The Allen-Bradley 140G-G6C3-C70 circuit breaker is a molded case circuit breaker from series 140G. This 3-pole protective device has a 125 Amps maximum continuous current rating that is suitable for standard industrial installation settings. The main function of the 140G-G6C3-C70 circuit breaker is to detect any failure that causes overcurrents and to stop the flow of electricity and to prevent undesired consequences for devices and for the people who may come in contact with the equipment. This electrical circuit’s protective device can operate with a maximum voltage of 690 Volts AC or 500 Volts DC. Its nominal interrupting capacity is 65 kA rated at 40 degrees Celsius. This circuit breaker from Allen-Bradley can be upgraded with various accessories to further extend device capabilities, like detecting undervoltage, sending status information over NO/NC contacts, or automatically resetting.

Circuit breakers, like fuses, serve to protect electric circuits against high currents. A circuit breaker such as the Allen-Bradley 140G-G6C3-C70 circuit breaker is much more expensive than a fuse with the same capacity, but it has the advantage of being a more reliable mechanism that can be activated up to 25,000 times and for which there is no risk of jamming. The 140G-G6C3-C70 circuit breaker has a non-adjustable nominal current value of 70 Amps. In the heart of the circuit breaker is the arc chamber that comprises arc chutes and splitter plates. These elements are efficient in drawing the arc away from the contacts, which causes the arc to last for a shorter time and to cool down faster. This is how the whole process of reacting to short circuits is kept safe and instantaneous.