Installation and Operation Manual
Q
F
ire – Fire Brigade Switch
4.6
CONNECTION OF THE PV STRING LINES
Proceed as follows:
1.
Turn off the control box main switch OFF „0“.
2.
Connect PV strings to the MC4 plugs of the switch box(es), see figure 15:
- left – connection PV strings coming from PV modules
- right – connection to the inverter
DON’T REVERSE POLARITY! String lines must maintain their assignment input to output!
Figure 15: Connections switch box
Figure 16: Interconnection PV strings and surge protection device SPD
Q3 Energie GmbH & Co. KG
Phone
+49 (0)8341/9080 334
IA-BA_QFire _E_AS002_V1.0
Moosmangstr. 8
Status
March 15, 2024
Page
21 | 28
87600 Kaufbeuren
Our general terms of business are to be applied.
Germany
Web
www.q3-energie.de
Errors and changes reserved.
eh
alten.
control line
PV →
PV string 1-
PV string 1+
→ Inverter
string 1-
string 1+
