With 24 V, the DIN rail power supply is the ideal solution for building automation such as small PLCs and security technology, where multiple devices are interconnected with constant low-voltage and low current requirements. Its compact, stepped design makes the power supply perfect for tight spaces with demanding heat requirements, such as in control cabinets or distribution boxes. The 24 V power supply is suitable for control systems like doorbell systems, networked lighting, heating, or ventilation, and for operating monitoring and alarm systems. With a width of 35.2 mm, it is particularly compact and can be quickly and easily mounted on a DIN rail with a hat profile using a click system, for example, in a control cabinet. The DIN rail transformer converts input voltage in the range of 100-240 V AC at 50/60 Hz into 24 V constant DC voltage. It features a variable adjustable DC output voltage of 20-29 V and a high efficiency. The switching power supply is particularly safe thanks to overvoltage, overload, and short-circuit protection, protection class IP20, and safe electronic isolation according to protection class II. The transformer from 230 V to 24 V is passively cooled by convection and connected via touch-protected screw terminals. It has an integrated LED indicator that lights up continuously during operation or when the power supply is functioning correctly.