The Allen-Bradley 140G-H6F3-D10 circuit breaker is a 3-pole circuit breaker with a 100 Amps current rating. It is part of the 140G MCCB (molded case circuit breaker) series and these breakers are available with 2 types of trip modules, electronic and thermal/magnetic. Furthermore, the 140G series circuit breakers, which are ideal for control panel in-line protection, offer a wide range of current ratings from 10 to 3000 Amps, have compact sizes which enables space conservation, and which are approved by the UL, CSA, and IEC standards for global use. To guard against electric shock, the power source should be disconnected before the 140G-H6F3-D10 circuit breaker is installed or serviced. According to the NFPA 70E requirements, the breaker should be protected against contaminants by being installed inside a suitable enclosure. The maximum recommended operating temperature for this circuit breaker is 104 degrees Fahrenheit.

Proper grounding of the 140G-H6F3-D10 circuit breaker is essential and 8 AWG copper wire should be used for the grounding. An unused breaker should be kept in storage where the surrounding temperature is between -40 and 80 degrees Celsius. The 140G-H6F3-D10 circuit breaker uses an adjustable thermal/magnetic trip module. The thermal trip threshold can be set between 70 and 100 Amps. The magnetic trip threshold can be set between 500 and 1000 Amps. The 140G-H6F3-D10 circuit breaker is rated for 8 kilovolts of impulse voltage. The electrical life of the 140G-H6F3-D10 circuit breaker is 8000 operations (120 operations per hour) at 415 Volts AC. The interrupting rating specifications are 150, 65, and 25 kiloamps at 240, 480, and 600 Volts AC.