The particularly narrow switching actuator for DIN rail mounting - 1-way (HmIP-DRSI1) with a width of just 1 HP can be easily installed on a standard DIN rail to switch a channel from the distribution cabinet. This makes the device ideal for replacing impulse switches. It is controlled directly via standard 230 V buttons, wirelessly via Homematic IP buttons or remote controls and even at any time via the smartphone app. The connection to rigid or flexible cables is particularly easy thanks to the spring-loaded terminals. Even without programming, the function and wiring can be checked directly on the device during installation thanks to the illuminated display and the device buttons.