User Manual: Electronic switch Main Switch
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1. Introduction
Main Switch is an electronic switch designed primarily for switching of the main power supply for an RC model. It adds
an element of safety when handling the model, without the need to physically disconnect the model´s batteries. A big
advantage of electronic switches in comparison to mechanical switches is, in general, their higher reliability as far as
vibration resistance is concerned. Another advantage of the electronic switch is its ability to withstand an unlimited number
of switching cycles. Electronic switches have no moving parts like contacts which would be worn out during the switching
processes, therefore their longevity is extremely high. Moreover, they are not prone to spontaneous and unexpected false
tripping with known disastrous effects. Last but not least, electronic switches offer a much lower inherent transient
resistance in comparison to mechanical switches. The Main Switch prevents the connectors from sparking when
connecting the batteries, thus it can also replace Anti Spark plugs.
The Main Switch is shipped with a magnetic switch. The magnetic switch instructions can be found on the
manufacturer´s website. It is also possible to use the optional RC Switch instead of the magnetic switch.
The Main Switch is primarily designed for switching the main power supply of the RC models, but can also be used in
applications where switching a DC power supply is needed.
2. Connection
The power supply is connected to the Main Switch using two input wires with cross sections of 6 or 8mm
2
. The output
voltage is available at two cables with cross sections of 6 or 8mm
2
. The output three-wire cable with the JR connector is
used for telemetry data transmission. The output three-pin connector is used to connect the supplied magnetic switch or
the RC Switch.
The Main Switch connects and disconnects the negative pole - , the + pole is always connected and is never
disconnected!
Fig. 1: Connection of input and output cables
Be sure to connect the power supply wires correctly; always connect the red cable to the + pole of the
accumulator, the black cable to the – pole of the accumulator. Pay attention when connecting outputs and inputs,
they must not be swapped. Failure to follow these requirements may result in irreversible damage to the Main
Switch!! Only connect batteries to the input IN and connect speed controllers, receivers, servos etc. to the output
OUT.