Notes On The Knockouts; Safety; General; Knocking Or Drilling Out Knockouts - Fronius Primo 3.8-1 208-240 Installation Instructions Manual

Notes on the Knockouts

Safety

Danger of short circuit from loose metal parts from knockouts.
Loose metal parts in the inverter may cause short circuits when the inverter is
powered up. When removing knockouts, make sure that
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NOTE!
When using the cable inlets at the back, take care to seal them according to pro-
tection class NEMA4X before operating outdoors.
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.

General

The wall bracket contains several knockouts of different sizes. When knocked
out, the openings are used for feeding in the various cables:
1/2 in.
for Fronius Primo 3.8-8.2:
3/4 in.
for Fronius Primo 10.0-15.0:
3/4 in. -
1 1/4 in.
*
IMPORTANT! The knockouts on the rear of the wall bracket are made of metal.
Knocking or IMPORTANT! The side knockouts and the knockouts on the underside of the
drilling out wall bracket may be knocked out using a hammer or screwdriver, or drilled out
knockouts
using a step drill.
The knockouts at the back may only be drilled out using a step drill.
CAUTION!
no loose metal parts fall into the connection area of the inverter,
any metal pieces that do fall into the connection area are removed immedi-
ately.
for data communication cable (DATCOM)
for AC and DC cables
for AC and DC cables
A grounding electrode terminal (GET) may be required depending
on local regulations.
The cable for the grounding electrode terminal can be fed through
the designated opening on the underside of the wall bracket.
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