30 • The WAGO-I/O-SYSTEM 750Power SupplyWAGO-I/O-SYSTEM 750ETHERNET TCP/IPAttentionSome bus modules have no or very few power contacts (depending on the I/Ofunction). Due to this, the passing through of the relevant potential isdisrupted. If a field supply is required for subsequent bus modules, then apower supply module must be used.Note the data sheets of the bus modules.In the case of a node setup with different potentials, e.g. the alteration fromDC 24 V to AC 230V, a spacer module should be used. The opticalseparation of the potentials acts as a warning to heed caution in the case ofwiring and maintenance works. Thus, the results of wiring errors can beprevented.2.7.3.2 FusingInternal fusing of the field supply is possible for various field voltages via anappropriate power supply module.750-601 24 V DC, Supply/Fuse750-609 230 V AC, Supply/Fuse750-615 120 V AC, Supply/Fuse750-610 24 V DC, Supply/Fuse/Diagnosis750-611 230 V AC, Supply/Fuse/DiagnosisFig. 2-14: Supply module with fuse carrier (Example 750-610) g0xxx09x