Functional Extra Low Voltage (FELV)

An extra low voltage circuit that does not fulfil the requirements for a PELV (protected extra-low voltage) or SELV (separated extra-low voltage) circuit. Although the FELV part of a circuit uses an extra low voltage, it is not adequately protected from accidental contact with higher voltages in other parts of the circuit. Therefore the protection requirements for the higher voltage have to be applied to the entire circuit.