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CAUTION! The inverter can be damaged by soiling or water on the terminals and contacts of the connec-
tion area.
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When drilling, make sure that terminals and contacts in the connection area do not become soiled
or wet.
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The wall bracket without the power stage set does not possess the same degree of protection of the
inverter as a whole and, therefore, should not be assembled without a power stage set.
Protect the wall bracket against soiling and moisture during installation.
CAUTION! Danger of damaging the inverter due to improperly connected terminals. Improperly connec-
ted terminals can cause thermal damage to the inverter and may cause a fire. When connecting the AC
and DC cables, make sure that all terminals are tightened securely using the proper torque.
CAUTION! Risk of fire due to incorrectly designed AC fuse.
To reduce the risk of fire:
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connect only to a circuit provided with branch circuit overcurrent protection in accordance with the
National Electrical Code, ANSI / NFPA 70;
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observe maximum values for branch circuit overcurrent protection.
CAUTION! Overloading the inverter may damage it.
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Only connect a maximum of 20 A to an individual DC terminal.
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Connect the DC+ and DC- cables to the correct DC+ and DC- terminals on the inverter.
CAUTION! Danger of short circuit from loose metal parts from knockouts. Loose metal parts in the in-
verter may cause short circuits when the inverter is powered up. When removing knockouts, make sure
that
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no loose metal parts fall into the inverter,
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any metal pieces that do fall into the inverter are removed immediately.
NOTE! Degree of protection NEMA4X is only ensured when the inverter is mounted and firmly screwed
into the wall bracket.
The wall bracket without inverter has no NEMA protection
NOTE! When using the cable inlets at the back, take care to seal them according to degree of protec-
tion NEMA4X before operating outdoors.
NOTE! When installing using a metal carrier, the inverter should not be exposed to rainwater or water
spray at the back. Ensure proper rainwater or spray water protection.
NOTE! When installing outdoors, only use waterproof conduit fittings and conduits. Conduit fittings and
conduits are not part of the scope of supply for the inverter.
NOTE! If the neutral conductor is too small it can adversely affect the inverter's feed-in of power to the
mains. The neutral conductor must therefore be the same size as the other live conductors.
NOTE! Do not connect the ground to the negative DC line at any point! This is already done within the
inverter. In case the negative DC lines are connected to the DC terminals or are connected to the
ground beforehand, this bypasses the GFDI protection system and prevents the inverter from recogni-
zing residual currents.
Furthermore, when in the "OFF" position or when in open circuit status, the DC isolating switch does
not disconnect the solar modules from the ground - only the positive DC side is disconnected.
NOTE! When connecting aluminum cables:
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follow all national and international guidelines regarding the connection of aluminum cables,
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follow the instructions of the cable manufacturer,
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perform an annual check to ensure that the cables are firmly attached according to the proper tor-
que.
NOTE! When connecting DC cables, ensure the polarity is correct.
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