The 140U-H6C3-C40 circuit breaker is an Allen-Bradley/Rockwell Automation circuit breaker with a molded case. This essential machine protection device is part of the 140U product series that offers a variety of models with different frame sizes and current ratings. Also, the series provides optional elements such as internal control modules and control module combinations in order to meet the requirements of specific applications. The 140U circuit breakers are built with several different interrupting ratings and with one, two, or three poles. The 140U molded case circuit breakers are 100% rated at up to 10 Amps of current and they are suitable for a few different voltage ranges. In addition to that, these circuit breakers provide overcurrent protection, molded case switches, rotary operators, and flex cable operators.

The 140U-H6C3-C40 circuit breaker has three poles and a frame marked with the letter H to indicate its size. The 140U circuit breakers with Frame H have a current rating of 125 Amps and this particular model also has an interrupting rating/breaking capacity of 60 to 69 kiloAmps. In addition to that, the current range of the device is 10 RR. Amps. The 140U-H6C3-C40 molded case circuit breaker features fixed thermal and fixed magnetic protection and it has an IP2X protection class. The unit does not include internal control modules or other available elements but it can be enhanced with these options if needed. Allen-Bradley provides several field installed modules, terminal lugs, and external accessories for the circuit breakers that are also available through this series. The 140U-H6C3-C40 circuit breaker is a CE marked and UL listed component that complies with standards such as the CSA C22.2 (No. 5) and IEC 60947-2 standards.