Notes On The Knockouts; General; Knock Or Drill Out Knockouts - Fronius Primo 208-240 Operating Instructions Manual

Notes on the Knockouts

General

The wall bracket contains several knockouts of different sizes. When knocked out, the
openings are used for the inputs of various wires.
1/2 in.
for Fronius Primo 3.8-8.2:
3/4 in.
for Fronius 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.
Knock or drill out IMPORTANT! The side knockouts and the knockouts on the underside of the wall bracket
knockouts may be knocked out using a hammer or screwdriver, or drilled out using a step drill.
The knockouts at the back may only be drilled out using a step drill.
for data communication cable (DATCOM)
for AC and DC cables
for AC and DC cables
A grounding electrode terminal may be required depending on local regula-
tions.
The cable for the ground electrode terminal can be fed through the designat-
ed opening on the underside of the wall bracket.
CAUTION! 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
- 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.
Use suitable eye protection when knocking/drilling out the knockouts.
Only knock out knockouts using a hammer or screwdriver from the in-
side outwards.
Only use suitable step drills to drill out the knockouts.
Do not use spiral drills for drilling out!
Only drill out knockouts using a step drill from the outside inwards.
When drilling out using a step drill, ensure that the DC disconnector
and the AC/DC connection block are not damaged.
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