Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

What is a GFCI and how does it work?

April 26, 2017GFCI

0

Posted

What is a GFCI and how does it work?

1 Answer

0

Posted

The Ground Fault Circuit Interrupter’s (GFCI’s) circuitry senses an imbalance between the hot and neutral circuits (ie the electrical current going through the tool to the operator and to the ground). If the difference between the circuits exceeds a pre-determined level, the GFCI disconnects (interrupts) both the hot and the neutral lines. Class A (portable) GFCI’s are designed to trip when the ground fault circuit current exceeds between 4-6 milliamps (mA).