The 140U-H6C3-C20-A-MT circuit breaker is a molded case circuit breaker which is mostly used when the load current cannot be handled by small circuit breakers. This Allen-Bradley manufactured circuit breaker is a 600 Volts AC and a 125 Volts DC unit. It can run with both single-phase and three-phase power supplies. It uses three poles to protect three different circuits. The circuit breaker comes with a DIN Rail for mounting purposes. The breaker has a frequency of 50/60 Hertz. Different interrupt ratings are supported by this circuit breaker. An on/off switch is placed on the front panel for turning the circuit breaker on and off. A push-to-trip button is also available which is used to trip the breaker manually. The 140U-H6C3-C20-A-MT circuit breaker uses wire with a high conducting capacity. The maximum temperature of the wire should not exceed 60 or 75 degrees Celsius. The circuit breaker meets all the requirements that are necessary to meet the EMC specifications. It is certified with standards like the UL and CSA standards.

The 140U-H6C3-C20-A-MT circuit breaker is compact in size and it is portable. It is a complete Series B circuit breaker and is equipped with auxiliary contacts on the top and bottom. The circuit breaker comes with a current limiting feature which is used to control the amount of current that is flowing through the circuit. The 140U-H6C3-C20-A-MT circuit breaker has a 20 Amps fixed magnetic trip and a fixed thermal trip. It provides a Class 10 trip protection to the system circuit. The breaker is fully compatible with different Allen-Bradley devices, including the Allen-Bradley variable frequency drives. It is equipped with standard bus bars and conductors.