Connecting The Inverter; Safety Instructions For Connecting The Inverter; Wiring Requirements For Connecting The Inverter - Ingeteam INGECON SUN String Control 320 Handbuch Für Montage Und Betrieb

Connecting the inverter

11. Connecting the inverter
This chapter explains the requirements and process for connecting the inverter wiring to the unit.
Read carefully before starting the connection process.

11.1. Safety instructions for connecting the inverter

Refer to Section "3. Safety" and the safety paragraph in this section before operating the equipment.
Make sure there is no voltage present on the unit before carrying out any connections. Once the
inverter is switched off, wait at least 10 minutes until internal capabilities are fully discharged.
When connecting the INGECON SUN String Control to the inverter, the PV array must be
disconnected and the inverter isolator switch open.
Ingeteam accepts no liability for any damages caused by incorrect connection.
Failing to apply the correct tightening torques to the connection terminals causes a risk of
overheating and fire.
In order to keep the nuts and bolts of the unit in good condition it is important to make sure there is
no dirt or shavings in the threads when screwing them in and apply a suitable lubricant.
After connecting the inverter connection wiring, do not switch on the power until you have made all
other connections and the unit has been closed.
Use the Personal Protective Equipment specified in the section "3.2. Personal Protective Equipment
(PPE)".

11.2. Wiring requirements for connecting the inverter

• Tinned copper compression terminals must be used for the inverter connection.
• Only copper or aluminium cable shall be used.
• The DC connection cables must withstand at least 1000 V between poles and between each pole and
ground.
Packing gland installed
Permitted wiring diameter*
Permitted wiring gauge (guide value)**
Terminal tightening torque (for M10)
* If you wish to use wiring with a smaller diameter, you must fit a Skindicht KU-M type adaptor in the packing
gland to maintain the protection class of the unit.
** Depends on the insulation of the wiring used.
AAS2011IQM01_ - Installation and usage manual
INGECON SUN STRING CONTROL
M50
27 ~ 35 mm
240 ~ 300 mm
2
47 Nm without lubrication, 39 Nm lubricated
Ingeteam
DE
EN
ES
FR
IT
PT
61