11-27-2021, 01:37 AM
I mean that the output terminal of the fuse is connected to the input terminal of the relay, then the output terminal of the relay is connected directly to the consumer device. That way the fuse still protects the entire circuit from over current.
The only different between my connection scheme and the suggested version is that in my version the circuit of the varistor and the device is always closed and not protected (like in the schematic illustration from the post). If a very high voltage is stored in the device (due to magnetic energy when the relay is switched off) then it might incur high current trough the device and the varistor (because they are connected in parallel). Can this scenario actually happen? Is it a problem?
The only different between my connection scheme and the suggested version is that in my version the circuit of the varistor and the device is always closed and not protected (like in the schematic illustration from the post). If a very high voltage is stored in the device (due to magnetic energy when the relay is switched off) then it might incur high current trough the device and the varistor (because they are connected in parallel). Can this scenario actually happen? Is it a problem?