The ABB 1SVR730660R0100 is a CM-IWS.1S insulation monitoring relay — the class of device that continuously measures the insulation resistance of an ungrounded (IT) power system and signals a fault when the resistance drops below a set threshold. This is the component that sits between the line and the alarm or trip circuit in an IT distribution network, typically inside a control cabinet or panel. It is supplied in a retail package, meaning a single unit ready for individual replacement or small-panel builds, not a reel or bulk tray.
Active lifecycle status per the manufacturer.