The SPS 20 (single electronic switch) is an electronic switch mainly meant to switch supply voltages of receivers / servos, regulators, fuel pumps or similar equipment. A big advantage of electronic switches in comparison to mechanical ones is in general their higher reliability as far as vibration resistance is concerned. Another advantage of the electronic switch is given by its practical ability to withstand an unlimited number of switching cycles.
Electronic switches have no moving parts like contacts which would be wearing out during switching processes, therefore their durability is extremely long. Moreover, they are not prone to spontaneous and unexpected false tripping with known disastrous effects. Last but not least, electronic switches offer much lower inherent transient resistance in comparison to mechanical switches.
The electronic switches SPS 20 are operated with the aid of a magnetic switch which can be fixed to the fuselage or elsewhere. The system becomes switched on or off with application of a special magnet.
The switc SPS 20 is admittedly intended for the purpose of switching supply voltages of receivers and servos, but they may be as well successfully used for other DC switching tasks.
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