The DPS 40 (dual electronic switch) and SPS 20 (single electronic switch) are electronic switches primarily designed to control supply voltages for receivers, servos, controllers, fuel pumps, or similar devices. A significant advantage of electronic switches over mechanical switches is their higher reliability in terms of vibration resistance. Another benefit of electronic switches is their ability to withstand an unlimited number of switching cycles.

Electronic switches have no moving parts, such as contacts that wear out during switching operations, which gives them an extremely long lifespan. Additionally, they are not prone to spontaneous and unexpected false triggers, which can have devastating effects. Last but not least, electronic switches offer much lower inherent contact resistances compared to mechanical switches.

The electronic switches DSP 40 and SPS 20 are operated using a magnetic switch that can be mounted on the chassis or elsewhere. By applying a special magnet, the system can be turned on or off.

While the DSP 40 and SPS 20 switches are intended for switching voltages of receivers and servos, they can also be successfully used for other DC switching tasks.