The heart of the floor light switch is the circuit breaker (1). This is made of metal and either establishes the flow of electricity by closing the contact or interrupts the electrical flow by opening the contact. The breaker is switched by the button (2) with the aid of a spring (3). The button’s casing (4) is made of a non-conductive material, preferably plastic, to avoid electric shocks. Two three-wire cables (5) are connected by the circuit breaker. The individual wires are connected to their counterparts inside the breaker. The live wire (brown) connects the power source and the lamp, unless interrupted by means of the breaker. The current runs from the lamp back into the network along the neutral (blue) wire. Potential faulty currents are conducted along the green-and-yellow wire to the main circuit breaker, thus providing a safeguard to interrupt the electrical circuit if necessary. Unlike the brown wire that runs directly through the circuit breaker, the neutral wire and the grounding wire run along the edge of the casing and are kept in place with screw terminals (6).