Siemens 3RV1021-0DA10 motor protection relay, part of the 3RV series, rated for 240 V with a current of 0.22–0.32 A. It is designed to protect electric motors by monitoring electrical conditions in motor circuits and triggering protection as needed. The model number 3RV1021-0DA10 identifies this exact device within Siemens’ 3RV motor protection relay family.
