Electrical Supply for three phase RUWAC systems with Neutral (O wire)?

RUWAC standard power connection is for 3 phase power networks for 4 wire systems as described below.

For these cases, the answer to this question is "YES" and the vacuum machine control box supplied by Ruwac is without 400/230 V transformer.

If the customer's network is a 3 wire system the answer to the question is "NO" and we will supply a vacuum machine control box with 400/230 V transformer

Three - phase power network.
The three – phase power network has 2 systems, 3 phase 4 wire and 3 phase 3 wire.

The 3 phase 4 wire system, the network consists of three phases, a neutral (Zero wire)
and an earth. The voltage in the three-phase power supply system is between the
individual phases (the voltage is depending on voltage supply by each country) for
example in Germany voltage between individual phases is 400V and 230V from each
of the phases to the neutral if any device need 230 V is ready to use. (see figure 2).

The 3 phase 3 wire system, the network consists of three phases and an earth no
neutral wire. The voltage in the three-phase power supply system is between the
individual phases are the same with 3phase 4 wire system (the voltage is depending
on voltage supply by each country) for example in Germany voltage between
individual phases is 400V if some devices request different voltage power supply will
request transformer for AC current or DC switching for DC current. (see figure 3).