Steca GmbH
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
12V
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.
AJ V2.4
neutral is 230V. An appropriate divisor
establishes a 115V voltage in between neutral
and
According
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
+
Red
-
Black
24V
The AJ inverter, except AJ 2100-12, is
protected against inversion reverse polarity 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
AJ V2.4
earth,
and
the
phase
to
the
local
Metallic part of the enclosure
R1
DC/AC
Fuse
R2
1uF/63V
R1=R2 >2,7M ohm (not existing in AJ 275 -AJ 350 et AJ 400
48V
AJ
and
earth.
prescriptions
or
Brown
3x
Inom
Blue
10nF/275V
Green/
Yelow
5/30