The Siemens SIRIUS 3RQ3 series is an input coupler with semiconductor output for electrical isolation, amplification and signal adjustment between the controller and I/O. The operating voltage is 24 V ac/dc. The type of electrical connection for auxiliary and control current circuit is through spring type terminal. The type of switching contact is change-over contact. Very narrow and compact
Fast and error-free wiring due to the consistent bridging possibilities for all potentials