The 140G-I3C4-D20 circuit breaker is an Allen-Bradley 140G circuit breaker with an I Frame enclosure and a 200 Amps current rating. Because the 140G-I3C4-D20 circuit breaker is a high current/high voltage device, therefore extreme care should be taken while installing and servicing this breaker to prevent electric shock. This breaker should be installed inside an appropriate enclosure where it is protected from dangerous contaminants. The 140G-I3C4-D20 circuit breaker features a fixed thermal/magnetic trip unit. The 140G molded case circuit breakers are designed for industrial panel protection. A compact size, 10 to 3000 Amp current ratings, availability in 3-pole and 4-pole options, and certification by the UL, IEC, and CSA standards are some of the salient features of this circuit breaker.

The 140G-I3C4-D20 circuit breaker is an I Frame breaker with 2.1 kilograms of weight and which measures 150 x 140 x 70 millimeters (height x width x depth). Either aluminum or copper wire with a 75 degrees Celsius temperature rating can be used for the breaker terminations. The current rating, thermal trip threshold, and magnetic trip threshold for the 140G-I3C4-D20 circuit breaker are 200 Amps, 200 Amps, and 2000 Amps, respectively. The 140G-I3C4-D20 circuit breaker is rated for 35 kiloamps interrupting capacity at 480 Volts AC. The rated insulation voltage for the 140G-I3C4-D20 circuit breaker is 800 Volts and the impulse withstand voltage rating is 8 kilovolts. The maximum recommended operating temperature is 40 degrees Celsius. The recommended temperature range for breaker storage is from -40 to 80 degrees Celsius. The 140G-I3C4-D20 circuit breaker comes with a rated mechanical life of 25,000 operations at 240 operations per hour.