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User Manual UM0006_ASW3000-10000-T_EN_V01_0221
The product is equipped with an integrated universal current-
sensitive residual current monitoring unit inside. The inverter will
disconnect immediately from the mains power as soon as fault
current with a value exceeding the limit.
Overvoltage category
The inverter can be used in grids of overvoltage category III or
lower in accordance with IEC 60664-1. This means that it can be
permanently connected at the grid-connection point in a building.
In installations involving long outdoor cable routing, additional
measures to reduce overvoltage category IV to overvoltage
category III are required.
AC circuit breaker
In PV systems with multiple inverters, protect each inverter with a
separate circuit breaker. This will prevent residual voltage being
present at the corresponding cable after disconnection.
No consumer load should be applied between AC circuit breaker
and the inverter.
The selection of the AC circuit breaker rating depends on the
wiring design (wire cross-section area), cable type, wiring
method, ambient temperature, inverter current rating, etc.
Derating of the AC circuit breaker rating may be necessary due
to self-heating or if exposed to heat.
If an external residual-current device is required, install
a residual-current device which trips at a residual current of
100 mA or higher.
