Installation and Operating Instructions V00
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5.4.5 Overvoltage category
The inverter can be deployed in grids of installation category III or lower, as defined
under 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 overvoltage-reducing measures must be taken so that the overvoltage
category is reduced from IV to III.
5.4.6 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-TECH.
5.4.7 Rating of miniature circuit-breaker
No load should be applied between the circuit-breaker and the inverter. Use dedicated
circuit-breakers with load switch functionality for load switching. The selection of the
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
circuit breaker rating may be necessary due to self-heating or if exposed to heat.
The maximum output currents of the inverters can be found in the following table.
Type
ASW1000S-
S
ASW1500S-
S
ASW2000S-
S
ASW3000S-
S
Danger to life due to fire
•
You must protect each inverter with an individual miniature circuit-
breaker in order that the inverter can be disconnected safely.
