User Manual UM0025_ASW3000-6000H-S2_EN_V02_0722 31
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.
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
Summary of Contents for ASW H-S2 Series
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