User Manual UM_ASW3000-5000H-S_EN_V01_0321 33
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.
The maximum output current and the maximum output
overcurrent protection of the inverters can be found in section 10
"Technical data".
Grounding conductor monitoring
The inverter is equipped with a grounding conductor monitoring
device. This grounding conductor monitoring device detects
when there is no grounding conductor connected and
disconnects the inverter from the utility grid if this is the case.
Depending on the installation site and grid configuration, it may
be advisable to deactivate the grounding conductor monitoring.
This is necessary, for example, in an IT system if there is no
neutral conductor present and you intend to install the inverter
between two line conductors. If you are uncertain about this,
contact your grid operator or AISWEI.