CONNECTION TO POWER MAINS
POWER OFF THE POWER SUPPLY PRIOR TO ANY OPERATIONS WITH THE UNIT.
THE UNIT MUST BE CONNECTED TO POWER SUPPLY BY A QUALIFIED ELECTRICIAN.
THE RATED ELECTRICAL PARAMETERS OF THE UNIT ARE GIVEN ON THE
MANUFACTURER’S LABEL.
ANY TAMPERING WITH THE INTERNAL CONNECTIONS IS PROHIBITED
AND WILL VOID THE WARRANTY.
DO NOT LAY THE CABLE IN CLOSE PROXIMITY TO THE CONTROL
PANEL CABLE!
WHILE ROUTING THE CONTROL PANEL CABLE DO NOT COIL THE
EXTRA LENGTH.
Route the cables to the control unit through the sealed cabled glands in the unit.
All the electric connections must be performed in compliance with external wiring diagram and wired through the terminal block X1
in the control unit. Extra control units may be optionally connected to the unit. Extra connected control units are not included in the
delivery set and must be ordered separately. Extra connections are shown in dotted lines in the wiring diagram.
The unit is rated for connection to 1~230 V/50 (60) Hz power mains. The unit must be
connected to power mains using insulated electric cables with a wire cross section of
at least 2.5 mm
2
and with a cable length of up to 50 m. The conductors’ cross section
value is indicative. The actual wire cross section selection must be based on the type
of wire, its maximum allowable heating, insulation, length and installation method.
The external power input must be equipped with an automatic circuit breaker
built into the stationary wiring to open the electric circuit in case of overload or
short-circuit. The circuit breaker installation place must provide quick access for
emergency shutdown of the unit. The trip current of the automatic circuit breaker
must correspond to the current consumption of the unit (refer to the technical data
table).
To access the terminal block, unscrew the screws of the control unit cover and
remove it.
civic ec lB(e)(2) 300/500(-e)
14
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