Carlo Gavazzi Monitoring Relay 1-Phase AC Current Control, 0.2-1A AC, S Housing, Plug-In, SPDT, Supply: 230VAC.
AC plug-in current metering relay. This relay is operating with commonly available standard current transformers, A/ 1A -... A/5 A. Often used to detect over and under loads. The relay features built-in latch function which can be used e.g. to hold an alarm ON.