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2 Safety
2.1 Intended Use
The unit converts the DC current generated by the photovoltaic (PV) modules to grid-compliant
alternating current and performs single-phase feed-in into the electricity grid
.MIC series
inverters are built according to all required safety rules. Nevertheless, improper use may cause
lethal hazards for the operator or third parties, or may result in damage to the units and other
property.
Principle of a PV plant with this MIC TL-X single-phase inverter
Position
Description
A PV modules
B DC load circuit breaker
C
Inverter
D
AC load circuit breaker
E Energy meter
F
Utility grid
The inverter may only be operated with a permanent connection to the public power grid. The
inverter is not intended for mobile use. Any other or additional use is not considered the intended
use. The manufacturer/supplier is not liable for damage caused by such unintended use. Damage
caused by such unintended use is at the sole risk of the operator.
PV modules Capacitive Discharge Currents
PV modules with large capacities relative to earth, such as thin-film PV modules with cells on a
metallic substrate, may only be used if their coupling capacity does not exceed 1uF. During
feed-in operation, a leakage current flows from the cells to earth, the size of which depends on the
manner in which the PV modules are installed (e.g. foil on metal roof) and on the weather (rain,
snow). This "normal" leakage current may not exceed 50mA due to the fact that the inverter would
otherwise automatically disconnect from the electricity grid as a protective measure.
2.2 Qualification of skilled person
This grid-tied inverter system operates only when properly connected to the AC distribution
network. Before connecting the MIC TL-X to the power distribution grid, contact the local power
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