10
3. Installation and Connection
The Reactive Power Control RM 9606
automatically determines the location of
the current and voltage sources (auto-
matic phase rotation). It may be connected
either to two phases (phase / phase) or to
one phase and neutral (phase/neutral).
The current transformer can be installed in
any phase. It has to be passed by both
capacitor and consumer current.
IMPORTANT NOTICE:
During installation and service work
the control relay must be kept free of
voltage.
3.1 Installation
Individually supplied control relays are
provided with insulated fixing screws.
These can be used to install the control
relay into switchgear cabinets of cubicles
of protective class II. Furthermore a seal-
ing ring is supplied, which must be used
when installing the control relay in switch-
gear cabinets and cubicles of protection
class IP 54.
The pre-mounted terminal connections
allow a quick and easy installation. The
control relay is electrically connected
through a multiple connecting terminal
supplied with the relay.
3.2 Voltage Connection
The control relay should preferably be
connected to the three-phase system as
shown in (page 11). To keep the function
"Zero Voltage Alarm" operational the sup-
ply voltage of the control relay should be
connected in the same phase as the con-
tactor voltage.
Supply voltage of 230 V should be con-
nected between the terminals "N/L" and
"230V". Supply voltage of 400V should be
connected at the terminals "N/L" and
"400V".
IMPORTANT NOTICE:
The control relay is designed for a
mains voltage of 230 VAC or 400 VAC
(phase/neutral or phase/phase).
For voltages greater or equal to 400 V,
a control transformer for the supply of
the controller must be used.
It is not allowed to use both connecting
terminals "230V" and "400V" simulta-
neously.
The connection of the supply voltage
must be fused externally
with max 4A.
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