EN 257:1992

EN 257:1992 is a standard published by the European Committee for Standardization (CEN). Its full title is "Mechanical thermostats for gas-burning appliances". This standard covers: This European Standard specifies the construction and performance requirements for mechanical thermostats for gas applications. It also establishes the definitions, test conditions and marking. It applies to mechanical thermostats controlling the gas flow directly or indirectly through an integral gas valve, and which do not require external electrical energy for their operation. The requirements of this standard apply to thermostats for all gas appliances, either heating or cooling, which are suitable for gases of one or more fuel gases of the 1st, 2nd or 3rd families and for gas pressures as defined for these gas families. This standard only applies to thermostats used with gas appliances which are not installed in the open air. Mechanical thermostats dealt with in this standard are intended for control functions.

This European Standard specifies the construction and performance requirements for mechanical thermostats for gas applications. It also establishes the definitions, test conditions and marking. It applies to mechanical thermostats controlling the gas flow directly or indirectly through an integral gas valve, and which do not require external electrical energy for their operation. The requirements of this standard apply to thermostats for all gas appliances, either heating or cooling, which are suitable for gases of one or more fuel gases of the 1st, 2nd or 3rd families and for gas pressures as defined for these gas families. This standard only applies to thermostats used with gas appliances which are not installed in the open air. Mechanical thermostats dealt with in this standard are intended for control functions.

EN 257:1992 is classified under the following ICS (International Classification for Standards) categories: 17.200.20 - Temperature-measuring instruments. The ICS classification helps identify the subject area and facilitates finding related standards.

EN 257:1992 has the following relationships with other standards: It is inter standard links to EN 257:2010, EN 525:2009, EN 1319:2009, EN 30-1-1:2008+A3:2013, EN 1266:2002, EN 30-1-1:2008+A2:2010, EN 732:1998, EN 778:2009, EN 416-1:2009, EN 419-1:2009, EN 613:2000, EN 257:1992/A1:1996. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

EN 257:1992 is associated with the following European legislation: EU Directives/Regulations: 2009/142/EC, 90/396/EEC; Standardization Mandates: M/BC/CEN/89/6. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.

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