What happens if the phase and zero are mixed up on a circuit breaker?

What happens if you make a mistake and connect the wires as shown in the photo? Will this lead to consequences for the device and all that after the RCD?Incorrect machine connection

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  • Admin

    On the left, power comes from above the phase, from below it turns out this phase goes to the comb bus, which feeds all the machines. If we connect the blue wire, that is, the zero bus, there will be no short circuit.
    It's just that everything will be exactly the opposite - the phase will go to the zero bus, and zero to the machines. It turns out that if you turn off any machine, the voltage on the group will be present in the form of one phase without zero, and the machines will turn off zero. So sometimes unfortunate electricians are stupid when they put a zero in the breaker, not a phase, but a break. Turn off the switch, and the phase remains in the cartridge. In general, this is an incorrect connection of the circuit breaker, you must not confuse the phase and zero when connecting the cores to the connectors of the machine!

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