The 140U-I0C3-C15 circuit breaker is an Allen-Bradley/Rockwell Automation circuit breaker device that operates within an industrial environment in order to provide secure operation to professional systems. The circuit breaker is part of the 140U product series that offers certified and standardized components with mechanical switching capabilities for breaking currents under typical operating conditions. These circuit breakers are used for a variety of applications and they are manufactured with different frame sizes. The 140U product series provides a choice of optional elements and accessories if additional functionality is necessary.

The 140U-I0C3-C15 circuit breaker has thermal-magnetic and non-adjustable magnetic trip protection and it is considered to be a combination starter unit with a medium interrupting capacity. The unit has an I Frame, three poles, and A NEMA size 1 starter. This circuit breaker variant has a continuous current rating of 15 Amps and a magnetic trip range of 500 to 800 Amps. The power rating of the 140U-I0C3-C15 circuit breaker includes 0.125 to 1.5 Horsepower output for 200 Volts, 0.125 to 2 Horsepower output for 230 Volts, 0.125 to 3 Horsepower output for 380 to 415 Volts and 460 Volts, and 0.125 to 5 Horsepower output for 575 Volts. The 140U-I0C3-C15 thermal-magnetic circuit breaker has a breaking capacity of ≥100 kiloAmps and a current range of 10 RR. Amps. All circuit breakers from the 140U series carry a protection rating of IP2X when wired and it operates in a temperature range of -25 to 60 degrees Celsius (-13 to 140 degrees Fahrenheit). These circuit breakers have a specified storage temperature range of -40 to 80 degrees Celsius (-40 to 176 degrees Fahrenheit).