SIRIUS safety technology basic package consisting of 3SU1100-0AB50-3BA0, 3SU1801-0AA00-0AB1, 3SU1801-0NB00-2AC2, 2 x 3SU1900-0HG10-0AA0, 3SK1112-2BB40, 2 x 3RT2015-1BB42, 3RA2916-1A, 2 x 3RT2916-1CB00. Basic package for EMERGENCY STOP monitoring with 3SK1 safety relay and 3RT2 contactors. Trust in the SIRIUS products from Siemens for safety applications. By purchasing this pre-configured safety package at a special price, you can implement a standard-compliant safety application in accordance with SIL 3 / PL e with just one article number. You do not need any software knowledge to fine-tune the device to your application; you can easily program the 3SK1 safety relay using the DIP switches on the front of the device. Circuit diagrams and files for evaluating the safety parameters in the Safety Evaluation Tool are available online free of charge. Safety is a SIRIUS business.