Store in accordance with the technical data > Environmental data - see Manual
http://www.kaco-newenergy.com/de/
in the „String-inverter/manual“ category.
2.7
Monitoring and protection functions
The following monitoring and protection functions are integrated in the device:
RCMU (Residual Current Monitoring Unit)
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.
Isolation detection / residual current monitoring and disconnection function to detect isolation faults
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.
Powador 30.0-72.0 TL3
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