Electromechanical Elementary Relays - Part 1: General and Safety RequirementsUL 61810-11 ScopeThis part of IEC 61810 applies to electromechanical elementary relays (non-specified time all-or-nothing relays) for incorporation into low voltage equipment (circuits up to 1000 V alternate current or 1500 V direct current). It defines the basic functional and safety requirements and safety-related aspects for applications in all areas of electrical engineering or electronics, such as:general industrial equipment,electrical facilities,electrical machines,electrical appliances for household and similar use,information technology and business equipment,building automation equipment,automation equipment,electrical installation equipment,medical equipmentcontrol equipment,telecommunications,vehicles,transportation (e.g. railways).Compliance with the requirements of this standard is verified by the type tests indicated.In case the application of a relay determines additional requirements exceeding those specified in this standard, the relay should be assessed in line with this application in accordance with the relevant IEC standard(s) (e.g. IEC 60730-1, IEC 60335-1, IEC 60950-1).