Controlling DC and AC Loads with Power Supply & 2-Position Button: A Step-by-Step Guide.#PowerSupply #DCACLoad #2PositionButton #LoadControl #SwitchingPowerSupply #IndustrialPower #ElectricalSystems #LoadSwitching #ButtonWithKey #DCACSwitching #PowerSupply #SwitchingPowerSupply #DinRailPowerSupply #PLCPowerSupply #SwitchModePowerSupply