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 [See sec-
tion 4.3
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 1050 V on the DC connection
Modifying the device
Off-grid operation
2.2
Protection features
The following monitoring and protection functions are built-in:
Overvoltage conductor / varistor to protect the power semiconductors from high-energy transients on the grid and
generator sides.
Device temperature monitoring system
EMC filter to protect the inverter from high-frequency grid interference
Grid-side varistors grounded to earth to protect the product against burst and surge pulses
Anti-islanding detection according to the current standards.
NOTE
Information on other applications / system set ups (e.g. parallel operation / multiple bidirectional feed-in
inverter) 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 installa-
tions- 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
overvoltage conductor or, if this is not practicable, then the test voltage can be reduced to 250V.
KACO blueplanet gridsave 50.0TL3-S
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EN