This European Standard specifies the safety, construction and performance requirements for multifunctional
controls intended for use with gas burners, gas appliances and similar use, hereafter referred to as MFC.
This European Standard is applicable to MFC with declared maximum inlet pressures up to and including
50 kPa (500 mbar) of nominal connection sizes up to and including DN 150 for use with one or more fuel
gases in accordance with EN 437.
MFC consist of two or more functions, at least one of which is a mechanical control, as specified in the
relevant control standards (see Figure 1). MFC consisting only of electronics are not covered by EN 126 (an
example is a combination of functions according to EN 298 and EN 1643).