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STUDER INNOTEC AJ
AJ V2.1 4/24
Connection
The connection of the inverter should be
done with utmost care. First connect the
consumer devices so as to prevent any
further contact once the 230 V voltage is
present. The technical data and
connection’s description, is either under
one side of the inverter or onto the cable
connection side. Installation is to be
made only by authorised persons.
Connecting the consumer devices
The AJ inverter is supplied with a 230 V
cable for the consumer devices. This
connection must be done observing the
colours:
Yellow-green: earth
Brown: phase
Blue: neutral
Once the consumer devices are
connected, make sure that they are
turned off before connecting the battery
Note
An Inverter constitutes an independent
power supply from the grid and could be
considered in the same way as a
generator set. The phase and the
neutral are not differentiated. The
voltage in between the phase and the
neutral is 230V. An appropriate divisor
establishes a 115V voltage in between
neutral and earth, and the phase and
earth. According to the local
prescriptions or particular requirement,
(example: use of a ground fault detector)
a true neutral may be established by
connecting the neutral and the earth
wire together. The so connected point,
may be connected with an existing
earth: earth of building; the chassis of
vehicle or the hull of ship.
Equivalent schema
Connecting the battery
Once the consumer devices are
connected, make sure that the
installations instructions of the 230V has
been followed with utmost care before
connecting the battery.
The cable of the battery is supplied with
the inverter and already connected in it.
A fuse must be installed on the battery.
Connect the battery observing carefully
the polarity. The AJ inverter, except AJ
2100-12, is protected against inversion by
a fuse, but if the polarity should be
inverted, the inverter must be sent to the
manufacturer for control.
Connect the battery using the following
colours:
BLACK cable: negative pole (-)
RED cable: positive pole (+)
For AJ 275-400, dominant colour is
applicable
When connecting the battery, there’s a
spark (Danger of explosion!),
because of the charging of the internal
condensator.
Check that the cables are well
adjusted and well tightened.
As long as it is possible, do not extend
the cables supplied with the batteries.
Extending them may increase the