25 / 103
Identification: MD-AL-GI-00
Rev. 1.1 of 12/03/2021 - Application: GID
User’s Manual 1PH 1100TL-3300TL-V3
Rev. 1.1 12/03/2021
4.
Electrical connections
General information in this chapter
This chapter describes the electrical connections of the 1PH 1100TL-3300TL-V3 inverter. Carefully read this
section before connecting the cables.
NOTE:
Before making any electrical connections, ensure that the DC circuit breaker is switched off. Please note
that the capacitors in the inverter may remain electrically charged after the DC circuit breaker has been
switched off. Therefore, it is necessary to wait at least 5 minutes to allow the capacitor to discharge
completely.
The inverter must be installed and serviced by professional technicians or electricians.
Attention
The PV modules generate electricity when exposed to sunlight, which can pose a risk of
electric shock. Before connecting the DC input power cord, be sure to disconnect the
strings via the appropriate circuit breakers.
Danger
The maximum open-circuit voltage of the photovoltaic string must be less than 500 V for
each 1PH 1100TL-2200TL-V3 inverter and less than 550V for each 1PH 2700TL-
3300TL-V3 inverter.
The 1PH 2700TL-3300TL-V3 series has only one independent input channel (MPPT); all
the photovoltaic modules connected to it must be of the same model and brand. They
must be connected in series and have the same orientation (solar azimuth and
inclination angle).
Note
