|Type of Certificate
|EC Type-Examination Certificate (Machinery Directive)
|ABB Electrification Sweden AB
|Sensors, Transmitters, Guards > Guard Interlocking Devices
|Safety Interlock Switch
|Codes and Standards
|The GKey4-Series guard interlocking switches can be classified as type 4 acc. to ISO 14119. In combination with an external safety device the guard interlocking switches can be used as PDDB acc. EN 60947-5-3 in safety applications up to SIL 3 and Cat. 4, PL e acc. EN ISO 13849-1 and
EN IEC 62061:2021.
|In PL e / SIL 3 applications, in which a periodical demand of the safety function is not ensured by regular operational sequences (≥ 1 / month), the safety function has to be tested manually at least once per month. For cascaded systems with series connections of multiple interlocking devices, ISO TR 24119:2015 has to be considered since the maximum achievable DC could be reduced to lower than PL e and SIL 3. The outputs of the GKey4-Series guard interlocking switches are rated for 60 VDC max only. The instructions of the associated Installation, Operating and Safety Manual shall be considered.
Remark: In case of missing entries this is due to restrictions by the certificate holder