Siemens ET200SP - Power Supply To power up the ET 200SP head module, you need to first connect a 24-volt power to the module. Then to power up the rest of the modules in the unit, You don’t have to connect any wire to these base units. Just connect the power to the first unit and the rest will be taken care of. Watch the video and answer the question. Do all Base Units require hard-wired power? ▶ Order ET 200SP Base Unit now https://bit.ly/3gQEavX #Automation #RealPars #ElectricalEngineering #In