The 140G-H2C3-C40 circuit breaker is a 140G 3-pole molded case circuit breaker manufactured by Allen-Bradley. Its nominal operating voltage rating is 690 Volts AC and its current range is 30 Amps. Its interruption ratings are 25 kAIC at 480 Volts AC and 14 kAIC at 600 Volts AC. This unit has an H Frame that is rated at 125 Amps and it features a fixed thermal and fixed magnetic trip unit. Its dimensions (height x width x depth) are 130 millimeters x 90 millimeters x 82.5 millimeters and its weight is 1.2 kilograms. Its mechanical service life is 25,000 cycles and its electrical service life is 8000 cycles. The Allen-Bradley 140G-H2C3-C40 molded case circuit breaker provides reliable short circuit and thermal-overcurrent protection for industrial equipment. It supports a wide range of mounting options and it is suitable for global industrial applications.

The toggle handle of the Allen-Bradley 140G-H2C3-C40 circuit breaker doubles as its switching mechanism and status indicator. It leverages the reverse loop design to open its contacts. The contacts are surrounded by an arc chamber with components that draw the arc away from the contacts and quickly cool them when the circuit is opened. A maintenance mode is available on the 140G-H2C3-C40 molded case circuit breaker to allow for system testing and maintenance without having to de-energize or power off the circuit breaker. This is achieved through its manually adjustable DIP switch that gives the users access to a preset group of protection parameters. This unit is compatible with an extensive range of field-installed accessories for application-specific requirements.