Marking For America According To Nec 500; Figure 19: Side Marking Example For I/O Modules According To Nec 500; Figure 20: Text Detail - Marking Example For Approved I/O Modules According To Nec 500; Table 15: Description Of Marking Example For Approved I/O Modules According To Nec 500 - WAGO I/O-SYSTEM 750 Series Manual
24v dc power supply (bus) internal system supply module 24 vdc