140G-J6F3-D10

The 140G-J6F3-D10 circuit breaker is a J Frame circuit breaker from Allen-Bradley/Rockwell Automation. Its frame has a current rating of 250 Amps while the breakers current range stands at 100 Amps. The 140G-J6F3-D10 circuit breaker belongs to the 140G family of circuit breakers with a molded case. Breakers in this family have high breaking capacities and a high interrupt rating. For example, the 140G-J6F3-D10 circuit breaker has its interrupting capacity rated at 65 kiloAmps at 480 Volts AC. The maximum amount of fault current supplied by a system can be calculated at any point in that system. However, the interrupting rating of the breaker must be equal to or greater than the amount of fault current that can be delivered at that point in the system where the breaker is used.

The Allen-Bradley 140G-J6F3-D10 circuit breaker, like other breakers in the same family, supports both factory and field-installed accessories. The 140G-J6F3-D10 circuit breaker features an adjustable thermal and adjustable magnetic protection type. Note that 140G circuit breakers can be reverse fed. However, when reverse feeding these devices, the line and load side terminals need to be identified properly. Notably, the interrupting capacity of the 140G-J6F3-D10 circuit breaker, like other breakers in the same family, decreases as the voltage increases. The 140G-J6F3-D10 circuit breaker has its operating voltage rated at 600 Volts AC. The circuit breaker meets global industry standards such as those from IEC, UL, and CSA. Allen-Bradley notes that further certification of the 140G-J6F3-D10 circuit breaker and other circuit breakers in the 140G series is an ongoing process.