The 12 V power supply can be used as a doorbell transformer, for the operation of surveillance and access systems, door opener, intercom, doorbell, etc.With a width of 18 mm, particularly compact and easy to mount on a DIN rail with hat profile thanks to the click system, for example in the control cabinetHighly reliable and stable 12 V LED transformer with an input voltage range of 100 to 240 V AC at 50/60 Hz, as well as a variable DC output voltage of 11 to 13 V.The switching power supply is particularly safe thanks to overvoltage, overload and short circuit protection, protection class IP20 and safe electronic separation according to protection class II.230V to 12V transformer with passive convection cooling connects via shielded screw terminals.An LED indicator on the DIN rail transformer (DR-15-12) lights up continuously during operation.