Siemens’ industry automation division has extended its range of Sitop single-phase power supplies, with three single-phase 24V power supplies with rated output voltages of 2.5A, 5A and 10A, plus two 12V power supplies with 7A and 14A. The company says the output voltage of the new PSU100S power supplies is adjustable over a wide range from 24 to 28V with the 24V power supplies and from 12 to 15.5V with the 12V models. The power supplies of the Sitop smart product line are designed for standard requirements in automated machines and plants and feature a signalling contact for evaluating the operating status “Output voltage OK”, and automatic range switching for connection to 120V and 230V supply systems worldwide. The units can be used at ambient temperatures from -10 to +70°C and offer effi ciency levels of up to 90%, claims the company.