Delios DLS 300 - AC BYPASS Switch; AC GRID Magnetothermal Circuit Breaker; AC out Magnetothermal Circuit Breaker; PV Inputs DC Switch

DLS / DLS-C Series
47
Cod.: 240.010.0042
WARNING: The operation of the automatic interlocking device is disabled by default factory setting.
The enabling and use of the automatic interlocking system must be carried out in accordance with the
regulations in force in the country of installation. (Setting are accessible only in "INSTALLER" mode with
password authentication. Refer to the SYSTEM PROGRAMMING section.).
3.4.5 AC BYPASS Switch
In the event of system maintenance and/or faults, the AC BYPASS switch located on the DLS allows the
safety system to be switched off and disconnected both from the national grid and the residential system
it is connected to. When enabled, the AC BYPASS switch, as well as disconnecting the DLS, reconnects
the residential and/or the privileged loads to the national grid, thus ensuring power supply continuity even
in the event of a converter failure.
3.4.6 AC GRID Magnetothermal Circuit Breaker
The GRID IN input of the DLS system is equipped with a two poles magnetothermal switch 32A 1P + N
4.5kA to protect and isolate of the AC line in question.
3.4.7 AC OUT Magnetothermal Circuit Breaker
The AC OUT output of the DLS system is equipped with a to poles magnetothermal switch 32A 1P + N
4.5kA to protect and isolate of the AC line in question
3.4.8 PV Inputs DC Switch
The inputs of the PV1 and PV2 photovoltaic eld of the DLS system are equipped with a dual twopoles
switch to disconnect the DC lines in question.
3.4.9 PV String Fuses
If necessary, it is advisable to install PV fuse board equipped with string fuses. The fuses rating must be
carefully evaluated during the installation.
3.4.10 Battery Galvanic Isolation
To ensure maximum safety, reliability and high efciency, the DLS system is tted with an innovative DC-
DC conversion stage between battery and AC output with high frequency galvanic isolation. Thanks to the
safety isolation provided by the conversion stage, the battery negative pole is directly tied to the protective
earth conductor and therefore the voltage at the battery terminals can be classied as SELV (Safety Extra
Low Volatge).
3.4.11 Battery Overcurrent Protection and Safety Fuse
The battery input is electronically protected from over-
current. In case of an internal fault in the control sy-
stem, the battery input is protected by a safety fuse.
(100A 80Vdc for DLS series and 60A 58Vdc for DLS-
C).
3.4.12 Automatic Battery Switch
The DLS system is equipped with an automatic battery disconnecting switch which guarantees the correct
connection / disconnection and operation of the batteries. When the system detects anomalous operating
conditions and in cases where the ON/OFF switch is disabled for maintenance and / or malfunction of the
system itself, the disconnector switch is automatically enabled, and the battery is safely disconnected from
the system. In these conditions it is possible to carry out the battery maintenance.
MODELLO VALORE
Serie DLS 100A 80Vdc
Serie DLS-C 60A 58Vdc