Jordfeilstrømsreléet

Jordfeilstrømsreléet, often abbreviated as RCD (Residual Current Device) or GFCI (Ground Fault Circuit Interrupter) in English, is a safety device designed to protect against electric shock. It works by monitoring the electrical current flowing through live and neutral conductors. Under normal conditions, the current in both conductors should be equal. If there is a fault that causes current to leak to ground, such as through a person, the current in the live and neutral wires will become unequal.

When the jordfeilstrømsrelé detects this imbalance, which indicates a potential shock hazard, it rapidly interrupts the electrical circuit. This interruption is typically much faster than a standard circuit breaker, significantly reducing the risk of serious injury or death from electric shock. Jordfeilstrømsreléer are commonly installed in homes and other buildings as a crucial component of electrical safety systems. They are available in various sensitivities, measured in milliamperes (mA), with lower mA ratings offering greater protection. It is important that these devices are tested regularly to ensure they are functioning correctly.