The 140G-H6C3-C30 circuit breaker is an Allen-Bradley circuit breaker. It is a breaker with a 30-Amp current rating which is part of the 140G series from Allen-Bradley. This assembled circuit breaker comes in a 125 Amps H Frame. The 140G-H6C3-C30 circuit breaker comes with a 25,000-hour mechanical life and an 8000-hour rated electrical life. The rated insulation voltage and impulse withstand voltage for the 140G-H6C3-C30 circuit breaker are 1000 Volts and 8 kilovolts, respectively. The breaker can withstand a 104 degrees Fahrenheit ambient temperature without derating. For storage, the temperature range is from -40 to 176 degrees Fahrenheit. The dimensions and weight of the 140G-H6C3-C30 circuit breaker are 90 x 82 x 130 (width x depth x height) and 1.2 kilograms, respectively.

The 140G-H6C3-C30 circuit breaker comes with a non-adjustable thermal/magnetic trip module. The rated current, thermal trip, and magnetic trip ratings are 30 Amps, 30 Amps, and 400 Amps, respectively. The rated breaking capacity (50 to 60 Hertz) of the 140G-H6C3-C30 circuit breaker according to the IEC 60947-2 standards are as follows: 100 kiloamps at 220 Volts AC, 70 kiloamps at 415 Volts AC, 65 kiloamps at 440 Volts AC, and 15 kiloamps at 690 Volts AC. Allen-Bradley has several rules and recommendations regarding the installation and servicing of the 140G-H6C3-C30 circuit breaker. These include disconnecting the electrical power before beginning maintenance or installation activities, proper grounding of the breaker with a minimum wire gauge of 8 AWG copper wire, protecting the breaker from contaminants, and installing the 140G-H6C3-C30 circuit breaker in a suitable enclosure. The list of available internal accessories includes an auxiliary contact, a UV relay, an alarm contact, a shunt trip, an AX / AL combo, and a trip unit contact.