GeneRAL FeAtURes
14
System composition
In addition to the entrance panels
and handsets, the installation of the
system only requires a few additional
accessories, which must always be
connected using the 2 WIRE system
The system created using the "2 WIRE
system" is classed as SELV (Safety
Extra – Low Voltage) due to the fact
that it is powered by non grounded
safety double insulation independent
power supplies with a max voltage
of 25 Vac (effective) or 60 Vdc non-
inverted voltage In addition, all
BTicino devices are double insulated
The conformity to SELV classification
is only guaranteed only subject to
FuLL COMPLIANCE with current
installation regulations and
with the GENERAL RuLES FOR
INSTALLATION relating to each
single device and cable, making up
the installation, issued by BTicino