Marking For America According To Nec 500; Figure 32: Side Marking Example For I/O Modules According To Nec 500; Figure 33: Text Detail - Marking Example For Approved I/O Modules - WAGO I/O-SYSTEM 750 753-501 Manual
2do 24v dc 0,5a 2-channel digital output module 24 v dc, short-circuit protected; high-side switching