Plug-in relay 4 changeover contacts, without test bracket DC 24 V, for LZS socket Plug-in relay SIRIUS LZX as a single module in combination with LZS plug-in base for galvanic isolation, contact multiplication, for switching small loads and as potential switching. The plug-in relays enable flexible design of the complete device and can be easily replaced. Individual modules are available in RT, PT and MT designs as well as in various coil voltages. SIRIUS relays - a program for all cases.