Can multiple electric valves share the same power supply?
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There are currently three 380V electric valves; is it possible to connect these three valves to a single power supply? Are there any regulatory requirements that can be used as a reference? Are there any other hazards besides the inconvenience of inspection and maintenance?
It increases security risks; if one fails, the others can no longer be used either.
It is best to connect the wires separately. As you mentioned, connecting them to a single power source means that if there is a problem with the wiring and a circuit breaks, it can cause failures in all three units. Additionally, when maintenance is required, all three units have to be powered off, resulting in unnecessary work