The CAD506KD is a TeSys Deca control relay from Schneider Electric, carrying 5 normally-open contacts rated for control-circuit duty. It switches loads in AC-14, AC-15, and DC-13 utilisation categories — the AC-15 rating (inductive solenoid loads) is the one that governs most panel applications, not the higher AC-14 resistive figure. The 100 VDC standard coil means it pulls in reliably on a 100 VDC control bus; the lugs-ring termination suits permanent wiring in a panel, not quick-disconnect.
The 45 mm wide body clips onto a DIN rail inside an enclosure. Front-face IP2X per VDE 0106 means accidental finger contact with live terminals is blocked — the panel builder can leave the front cover off during commissioning without a shock hazard. Depth of 93 mm and height of 77 mm leave enough room for wiring ducts alongside it on the rail. Operating range is -40 to 60 °C (derated above 60 °C), so it lives in an unheated cabinet without a heater as long as the ambient stays within that band.