Power supply with input voltage 110 240Vac 50 60 Hz. It provides two safety extra-low voltage supplies at the output one of 27V DC 1.2A on SCS terminals, one of 28.5V DC on terminal 1 2 to be used alternately and NOT simultaneously. It can also be used as an additional power supply output 1 2 for local supply of automation devices in this case no other output can be used. The device electronically protected against overload and short-circuit. a double-insulation SELV safety device Footprint 6 DIN modules.