Single-phase DIN-rail Power Supply with universal input and adjustable output. Most of the DIN rail models are provided with a front potentiometer in order to adjust the output voltage, generally within a range of ±10% of the rated voltage. Most of the power supplies can be connected in parallel with one identical unit in order to double the power. Some models can be connected up to 3 units. This family is specifically developed for home automation distribution boxes, with just a little more than 55mm/2.18 inches of depth, which allows flush mounting on the front panel of the boxes. This concept is modular according to DIN standard. The SPM series can be used in a large variety of applications to supply plcs, drives, displays, solid state and electromechanical relays.