Unlike modern digital relays, the QDB-2A frequently uses physical jumpers (JP1, JP2, JP3) to set:
Once you have downloaded the , you will notice it typically follows a standard technical documentation structure. Knowing where to look saves time. qdb-2a manual pdf
Use a multimeter to identify the two sets of coils (A-A and B-B). Unlike modern digital relays, the QDB-2A frequently uses
