ZGR SOLAR STR 250
Operation manual
www.zigor.com
20
Fig. 4-19 Hang the inverter
8)
Fix the inverter with screws (Fig. 4-14).
Fig. 4-20 Fix the inverter
Electrical installation
4.4
4.4.1
Safety instructions
Prior to any electrical connections, keep in mind that the inverter has dual power supplies. It is mandatory for the
qualified personnel to wear personal protective equipments (PPE) during the electrical work.
The inverter is subjected to high tensions, the mortal danger can occur due to the touch of the same. For this
product, the DC voltage is 1000 V and the AC voltage is 400 V.
DANGER
Danger to life due to a high voltage inside the inverter!
The PV string will generate lethal high voltage when exposed to sunlight.
Before starting electrical connections, disconnect the DC and AC circuit breakers and prevent them
from inadvertent reconnection.
Ensure that all cables are voltage free before performing cable connection.
WARNING
Any improper operations during cable connection can cause device damage or personal injury.
Only qualified personnel can perform cable connection.
All cables must be undamaged, firmly attached, properly insulated and adequately dimensioned.
NOTICE
Comply with the safety instructions related to the PV strings and the regulations related to the utility grid.
All electrical connections must be in accordance with local and national standards.
Only with the permission of the utility grid, the inverter can be connected to the utility grid.
