The 140UE-J7F3-D20 circuit breaker is a circuit breaker that has been designed by Allen-Bradley. The 140UE-J7F3-D20 circuit breaker is specifically designed for industrial motors to provide both short-circuit and branch-circuit protection. This circuit breaker can be used when it is connected to an industrial motor or when it has been connected to a series of other circuit breakers to offer protection to a system that is made of many pieces of industrial equipment. The 140UE-J7F3-D20 circuit breaker has been designed to provide a high interruption capacity, and its primary detection mechanism consists of two mechanisms, the adjustable thermal mechanisms and fixed magnetic mechanisms. The two detection mechanisms allow the 140UE-J7F3-D20 circuit breaker to become more effective when detecting excessive currents, and to protect industrial motors from these currents.

Since the Allen-Bradley 140UE-J7F3-D20 circuit breaker can be used for industrial motors, it is important to make sure that occasional operational tests are performed to check whether the functioning and rating of the circuit breaker are ideal. The 140UE-J7F3-D20 circuit breaker must not operate in extremely high temperatures since these temperatures have a significant impact on the circuit breaker’s tripping mechanism. There are a number of additional accessories that can be used with the Allen Bradley 140UE-J7F3-D20 circuit breaker, and these accessories include enclosures, knobs, and shields. The accessories can be found within the same catalog as the 140UE-J7F3-D20 circuit breaker, and they can be ordered according to the specifications of the 140UE-J7F3-D20 circuit breaker as well as the applications that the circuit breaker is intended for. All safety measures should be observed during the installation of this circuit breaker for optimal performance.