Expandable, Modular Safety System
The Sirius 3RK3 allows operators to quickly and easily replace devices
as necessary or expand the system as needed. The system’s central unit
is designed with eight safety-related inputs, one safety-related relay
output, and one safety-related solid-state output. Users can connect up
to seven expansion modules to the central unit. Expansion modules
include safety-oriented input modules, mixed modules with safe inputs
and relay or electronic outputs, and standard output modules. The
Sirius 3RK3 is certified for use in safety applications to Cat 4 in
accordance with EN954-1, and SIL3 in accordance with IEC 61508/62061.Siemens Energy & Automation Inc.www.sea.siemens.com800.241.4463
