Your search query on "SIEMENS Sicherheitsrelais" returned the following results:

Siemens SIRIUS 3TK2840-1BB40 Safety Barrier (134889278373)

Siemens 3TK2821-2CB30 Safety Relay (126452900554)

Siemens 3TK2828-2BB40 Sicherheitsrelais Sirius 3tk28 , 3tk2828 , 3tk2 828 (195928859558)