EN 61812-1:2011

FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Influence quantities
5 Rated values
6 Provisions for testing
7 Documentation and marking
8 Heating
9 Basic operating function
10 Insulation
11 Electrical endurance
12 Conditional short-circuit current
13 Clearances and creepage distances
14 Mechanical strength
15 Heat and fire resistance
16 Vibration and shock
17 Electromagnetic compatibility (EMC)
Annex A (informative) - Ball pressure test
Bibliography
Annex ZA (normative) - Normative references to
         international publications with their
         corresponding European publications
Annex ZZ (informative) - Coverage of Essential
         Requirements of EC Directives

IEC 61812-1:2011 applies to time relays for industrial applications (e.g. control, automation, signal and industrial equipment). It also applies to time relays for automatic electrical controls for use in, on, or in association with equipment for residential and similar use. This edition includes the following significant technical changes with respect to the previous edition: - addition of terms and definitions more commonly used by industry; - addition of timing charts to help explain terms and definitions involving a sequence of events; - addition of provisions for residential use.