– The enclosed documentation is an integral part of the product. The documentation must be read, observed
and stored in a place which is freely accessible at all times.
– Operation in accordance with the appended EU Declaration of Conformity envisages up to 2 bidirectional
feed-in inverters per battery.
– Approval from KACO new energy is required for a parallel DC circuit with more than 2 bidirectional feed-in
inverters.
Any other or additional use is not considered proper or intended use and can lead to an annulment of the prod-
uct guarantee. This includes:
– Mobile use
– Use in rooms where there is a risk of explosion
– Use of the device in direct sunlight, rain or a storm or other harsh environmental conditions
– Use in an outdoor area that does not meet the environmental conditions set down in the Environmental
data
– Operation of devices with an inconsistent performance in DC parallel operation
– Operation of devices with an inconsistent firmware version in DC parallel operation
– Operation outside the specifications intended by the manufacturer
– Overvoltage of over 1,500V on the DC connection
– Modifying the device
– Off-grid operation.
2.2
Protection features
The following monitoring and protection functions are integrated in the device:
– Overvoltage conductor/varistor to protect the power semiconductors from high-energy transients on the
grid and generator side
– Device temperature monitoring system
– EMC filters to protect the product from high-frequency grid interference
– Grid-side grounded varistors to protect the product against burst and surge impulses
– Islanding detection (anti-islanding) according to the current standards
– IMI (Isolation Monitoring Interrupter) detection of a generator insulation fault.
NOTE
Information on other applications / system set ups (e.g. parallel operation / multiple bidirectional feed-in in-
verter) is provided project specific as an application note. For further details, please contact our KACO sales
team
NOTE
If the device is connected, the overvoltage conductors / varistors contained in the device have an impact on the
electrical system insulation resistance test as per HD 60364-6 / IEC 60364-6 Low-voltage installations- Part 6:
Verification.
IEC 60364-6 6.4.3.3 describes two options for this case. The first option is to disconnect devices with an over-
voltage conductor or, if this is not practicable, then the test voltage can be reduced to 250V.
2 | Safety
Manual
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