What are devices that interrupt the flow of electricity within as little as 1/40 of a second to prevent electrocution?

Ground-Fault Circuit Interrupters (GFCIs) are devices specifically designed to interrupt the flow of electricity when they detect an imbalance in the electrical current. This typically occurs within as little as 1/40 of a second. The primary function of a GFCI is to protect individuals from electrocution by quickly cutting off the electrical supply when it senses that current is unintentionally flowing through a person rather than the intended electrical path.

GFCIs are particularly useful in areas with a higher risk of electric shock, such as bathrooms, kitchens, and outdoor locations, where moisture may increase the likelihood of ground faults. Their ability to respond so quickly is crucial in preventing severe injuries or fatalities due to electrical shock.

In contrast, circuit breakers protect electrical systems from overcurrent or short-circuits but are typically slower to respond than GFCIs. Surge protectors are designed to protect devices from voltage spikes, and voltage regulators maintain a constant voltage level to electrical devices. While all these devices play important roles in electrical safety, GFCIs are specifically engineered for rapid intervention to prevent electrocution.