BS EN 62019:1999+A12:2014

!This International Standard applies to auxiliary electromechanical contact units associated (or intended to be associated) with circuit-breakers for overcurrent protection, and with residual current operated circuit-breakers with or without integral overcurrent protection for household and similar installations, having a rated voltage not exceeding 440 V a.c. and 250 V d.c., and a rated current not exceeding 10 A.”

NOTE 1 These requirements may also be used as guidance for auxiliary contacts units intended to be assembled with other switching devices for household and similar installations.

NOTE 2 It is recommended that the advice of the manufacturer be sought concerning any application with low level energy appliances (low level values of current and/or voltage.) For low-energy contacts, specific recommendations are given in IEC 60947-5-4.

The object of this standard is to state

1. the characteristics of the auxiliary contact units;

2. their electrical and mechanical requirements with respect to

3. the various duties to be performed;

4. the significance of the rated characteristics and of the markings;

5. the tests to verify the rated characteristics;

6. the functional requirements to be satisfied by the auxiliary contact units with respect to

7. environmental conditions, including those of enclosed equipment;

8. dielectric properties;

9. terminals;

10. safety of use.

Applies to circuit-breakers for overcurrent protection and with residual current operated circuit-breakers with or without integral overcurrent protection.