Ground fault protection is important for a smooth and injury-free experience at locations susceptible to water exposure. To prevent electrocution, the General Electric THQB2120GFT 2 Pole Circuit Breaker can be installed in an electrical circuit. This molded case circuit breaker has an instantaneous trip function that cuts off electricity when it spots the flow of current outside the intended circuit path. This unit comes with a self-test feature that periodically checks the condition of the circuit breaker and trips itself if the device is found to be faulty. The GFCI (Ground Fault Circuit Breaker) is easy to install and works on thermal magnetic principle for effective protection of your equipment. The THQB2120GFT has voltage, current and interrupting ratings of 240 VAC, 20 Amp and 10kAIC respectively.