The Allen-Bradley 140G-K6H3-D40 circuit breaker is a product of Eaton Cutler-Hammer. This molded case circuit breaker and part of the Allen-Bradley 140G series, with a K frame rating and a current rating of 400 Amps. This unit features 3 poles, an interrupting rating of 65 kA, an impulse withstand voltage rating of 8 kV and AN insulation voltage rating of 1000 Volts. This circuit breaker has a variety of interruption ratings ranging from 25 to 200 kA to address the requirements of most industrial applications. This device also has many currents ranging from 16 to 3000 Amps. The circuit breaker comes with an Electronic LSI trip unit (long, short, and instantaneous) protection type, with an approximate weight of 7.17 pounds. The 140G-K6H3-D40 molded case circuit breaker comes with a wide range of features and with various frame types and it supports the most common accessories to enable ease of use.

Additionally, this circuit breaker has customer-suitable features which enhance the set-up process for all sorts of projects. Other features of the 140G-K6H3-D40 circuit breaker include a current rating of 400 Amps at 40 degrees Celsius and a nominal operating voltage of 690 Volts AC. Generally, the 140G molded case circuit breakers feature a current rating range of 10 to 3000 Amps, and they come with space-saving dimensions. The electronic protection of these circuit breakers range from 10 to 1000 Amps and they are accepted and approved for global applications. They also have a wide range of mounting options as well as a wide range of field and factory-installed accessories. The 140G molded case circuit breaker is designed to offer thermal, magnetic, and electronic trip protection with high circuit breaking and interrupting capabilities. They are suitable for the line protection of control panels.