Installation Manual

EN-US

CAUTION! Overloading the inverter may damage it.

- Only connect a maximum of 20 A to an individual DC terminal.

- 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

- no loose metal parts fall into the inverter,

- any metal pieces that do fall into the inverter are removed immediately.

NOTE! If the cable insulation of the AC cable is not designed for a maximum of 1000 V, AC and DC

cables must not be crossed when connecting in the inverter. If crossing the cables during connection

is unavoidable, the AC cable must be laid in one piece of the protective hose supplied with the inverter.

AC and DC cables can only be laid together if the insulation on both cables is designed for the max.

possible voltage of 1000 V.

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! When connecting aluminum cables:

- follow all national and international guidelines regarding the connection of aluminum cables,

- follow the instructions of the cable manufacturer,

- 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.

NOTE! Form a min. 4 in. wire loop using all wires..

NOTE! To ground solar module frames or mounts, you must observe both the relevant instructions from

the solar module manufacturer and national guidelines.

NOTE! Follow general ESD guidelines when handling option cards.

NOTE! Fronius will not bear any costs for loss of production, or installations, etc., which may arise due

to a detected electric arc and its consequences. Fronius accepts no liability for fires which may break

out despite integrated arc detection/interruption (e.g., due to a parallel arc).

NOTE! Before an inverter can be reset following a detected electric arc, check the entire affected pho-

tovoltaic system for any damage.