SN EN 61810-1 : 1998

1 Scope
2 Normative references
3 Terms and definitions
   3.1 Definitions related to general terms
   3.2 Definitions of relay types
   3.3 Definitions related to conditions and operations
   3.4 Definitions of operating values
   3.5 Definitions related to contacts
   3.6 Definitions related to accessories
   3.7 Definitions related to insulation
4 Influence quantities
5 Rated values
   5.1 Rated coil voltage/rated coil voltage range
   5.2 Operative range
   5.3 Release
   5.4 Reset (bistable relays)
   5.5 Recommended number of cycles for electrical endurance
   5.6 Recommended frequencies of operation
   5.7 Contact loads
   5.8 Ambient temperature
   5.9 Categories of environmental protection
   5.10 Duty factor
6 General provisions for testing
7 Documentation and marking
   7.1 Data
   7.2 Additional data
   7.3 Marking
   7.4 Symbols
8 Terminations
   8.1 Screw terminals and screwless terminals
   8.2 Flat quick-connect terminations
   8.3 Solder terminals
        8.3.1 Resistance to soldering heat
        8.3.2 Solder pins
        8.3.3 Terminals for surface mounting (SMD)
        8.3.4 Other solder terminations (for example
               soldering lugs)
   8.4 Sockets
   8.5 Alternative termination types
9 Sealing
10 Insulation resistance and dielectric strength
   10.1 Preconditioning
   10.2 Insulation resistance
   10.3 Dielectric strength
11 Heating
   11.1 Requirements
   11.2 Test procedure
   11.3 Terminals
        11.3.1 General test conditions
        11.3.2 Solder terminals
        11.3.3 Flat quick-connect terminations
        11.3.4 Screw and screwless type terminals
        11.3.5 Alternative termination types
12 Basic operating function
   12.1 General test conditions
   12.2 Operate (monostable relays)
   12.3 Release (monostable relays)
   12.4 Operate/reset (bistable relays)
13 Heat and fire resistance
14 Electrical endurance
15 Mechanical endurance
16 Clearances, creepage distances and solid insulation
   16.1 Clearances and creepage distances
   16.2 Solid insulation
   16.3 Accessible surfaces
Annex A (normative) Explanations regarding relays
Annex B (normative) Heating test arrangement
Annex C (informative) Schematic diagram of families of
                      terminations
Annex D (normative) Glow-wire test
Annex E (normative) Proof tracking test
Annex F (normative) Ball pressure test
Annex G (informative) Needle flame test
Annex H (normative) Measurement of clearances and creepage
                      distances
Annex I (normative) Relation between rated impulse withstand
                      voltage, rated voltage and over voltage
                      category
Annex J (normative) Pollution degrees
Annex K (normative) Inductive contact loads
Annex ZA (normative) Normative references to international
                      publications with their corresponding
                      European publications

Applicable to electromechanical elementary relays (non-specified time all-or-nothing relays) for incorporation. It defines the basic safety-related and functional requirements for applications in all areas of electrical engineering or electronics,