The Valve Drive Actuators VAA/S are
modular installation devices in
Pro M Design for installation in the
distribution board on 35 mm mounting
rails. The devices feature six
semiconductor outputs for control of
Thermoelectric Valve Drives in heating
and cooling systems.
The outputs can be operated at
24…230 V AC.
The outputs are short-circuit and
overload protected. The outputs can
be directly controlled using the manual
buttons. The LEDs on the front of the
device signal the status of the outputs.
The connection to the ABB i-buss® KNX
is implemented via a bus connection
The devices do not require an
additional auxiliary power supply.