140MG-K8P-D40

The 140MG-K8P-D40 circuit breaker is a motor protection circuit breaker that has been manufactured by Allen-Bradley/Rockwell Automation and included in its 140MG series of isolation and protective circuit breakers. This device consists of a molded-case circuit breaker that uses magnets as its main protective feature and that can be applied to provide short-circuit protection and motor isolation in industrial settings. This breaker belongs to the K Frame series and it operates with voltages that go from 240 to 500 Volts and 3-phase Horsepower ratings of 100 to 250 Horsepower. The Allen-Bradley/Rockwell Automation 140MG-K8P-D40 motor circuit breaker comes with magnets that can be adjusted from 400 to 4000 Amps. It also has a rated operational current of 400 Amps. The final selection of a circuit breaker for a machine needs to be based on the motor load current and different application requirements. The interrupting rating of the circuit breaker is going to be determined by the controller that is applied.

The Allen-Bradley/Rockwell Automation 140MG-K8P-D40 circuit breaker has an approximate mechanical life of 120 operations per hour or 20000 operations total, and an electrical life of 60 operations per hour or 7000 operations at 400 Amps and 5000 operations at 600 Amps. It is important to know that these specifications will depend on the quality of the installation and on the nature of the applications and operations. If the circuit breaker is properly installed and it operates with minimal inconveniences, these ratings are reliable. The Allen-Bradley/Rockwell Automation 140MG-K8P-D40 circuit breaker can be stored in a temperature range of -40 to 80 degrees Celsius and its dimensions consist of a width of 185 millimeters, a depth of 103.5 millimeters, and a height of 205 millimeters.