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A
Fig. 4
1. Insert the micro USB of the plug-in power supply
unit into connection A of the Vitotrol 300-E.
2. Plug the plug-in power supply unit for the
Vitotrol 300-E into the socket.
Power supply via plug-in power supply unit for flush mounting (accessories)
Isolators for non-earthed conductors
Install an isolator in the power cable to provide
omnipolar separation from the mains for all active
conductors, corresponding to overvoltage category
III (3 mm) for full isolation. The isolator must be fitted
in the permanent electrical installation, in line with
installation requirements.
We additionally recommend installing an AC/DC-
sensitive RCD, type B , for DC (fault) currents
that can occur with energy efficient equipment.
Danger
Incorrect electrical installations can lead to seri-
ous injury from electrical current and result in
appliance damage.
Connect the power supply and implement all
safety measures (e.g. RCD circuit) in accord-
ance with the following regulations:
IEC 60364-4-41
VDE regulations
TAR medium voltage VDE-AR-N-4110
Danger
Incorrect core assignment can lead to serious
injury from electrical current and result in appli-
ance damage.
Never interchange cores "L" and "N".
Danger
Incorrect wiring can lead to serious injury from
electrical current and result in appliance dam-
age.
Take the following measures to prevent wires
drifting into the adjacent voltage area:
Route extra low voltage (ELV) leads < 42 V
separately from cables > 42 V/230 V~/400 V~
and secure both types with cable ties.
Strip as little of the insulation as possible,
directly before the terminals. Bundle the
cables close to the corresponding terminals.
GNYE
12 V
BU
230 V
BN
1.
230 V
2.
12 V 12 V
Fig. 5
Installation sequence
Power supply via plug-in power supply unit (cont.)
5839615
Installation
16


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