How to exclude the simultaneous inclusion of several consumers (how to replace the load priority relay)?
He laid the warm floors. Broke into 3 zones. At the same time, the load is more than 8 kW / h. How to exclude the simultaneous inclusion of zones? The load relay type LSS 1/2 bites at a price of 13-16 tr. I did not find any analogues. Maybe tell me how to exclude simultaneous inclusion. Floors 220 century., Without land.
Hello! It is possible to assemble a circuit on interlocked contactors. See how such a circuit is organized by the example of reversing the start of electric motors in this article https://our.electricianexp.com/en/kak-podklyuchit-trehfaznyj-elektrodvigatel.html in the subtitle “Connection to a three-phase network” the third scheme. Duplicate it here:
Here, when the KM-1 contactor is turned on, the KM-2 contactor cannot turn on, since its control circuit is broken through the normally closed contact of KM1.2. This is described in more detail in the above article. But it is suitable for two sections, for three you can refine it by adding a third starter and relay to the control circuit, or by installing blocks with additional contacts on the contactors. Also, instead of contactors, you can assemble a relay circuit. Well, or look for radio buttons.
To select a technical solution, you should more specifically describe the desired algorithm for managing your floors.
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