IEC 61810-2-1:2011 specifies reliability test procedures for electromechanical elementary relays when enhanced requirements for the verification of reliability apply. Particular provisions are given for relays incorporated in safety-related control systems of machinery in accordance with IEC 62061 and ISO 13849-1. For such relays B
10 values for dangerous failures (B
10d values) are derived from the tests specified in this standard.
This publication is to be read in conjunction with
IEC 61810-2:2011.