User Manual

Reliable actuators for fire and
smoke protection dampers
Safety when it matters: The OpenAir actua-
tors function with reassuring reliability at
a sensitive interface between humans and
safety systems. After all, in an emergency
it’s extremely important to keep escape
routes and emergency exits free from
smoke as long as possible, even if there’s
apower outage or in special applications.
Powerful and safe opening
and closing
Three powerful torque levels ensure that the
dampers open and close rapidly and reliably.
Two integrated auxiliary switches provide
maximum safety in reporting the damper
position.
Actuators for fire and smoke protection
dampers: Maximum safety with OpenAir
Highlights
• Three powerful torque
levels, thermal cutout
at 72 °C or 95 °C
• Fast, easy and safe to install
• Robust housings for high
endurance
1)
.. = use dimensions for square damper shaft (mm)
Actuators for 󹪝re and
smoke protection dampers
Control
signal
Operating
voltage
Two auxiliary
switches
Two auxiliary
switches and
thermal cutout
Dimensions,
square damper
shaft (mm)
GRA actuator
4 Nm for approx.
0.6 m
2
damper area
90 s run time
15 s SR time
2-position AC/DC 24 V
AC 230 V
GRA126.1E/..
1)
GRA326.1E/..
1)
GRA126.1E/T..
1)
GRA326.1E/T..
1)
10, 12
GNA actuator
9/7 Nm for approx.
1 m² damper area
90 s run time
15 s SR time
2-position AC/DC 24 V
AC 230 V
GNA126.1E/..
1)
GNA326.1E/..
1)
GNA126.1E/T..
1)
GNA326.1E/T..
1)
10, 12
GGA actuator
18 Nm for approx.
2.5 m² damper area
90 s run time
15 s SR time
2-position AC/DC 24 V
AC 230 V
GGA126.1E/..
1)
GGA326.1E/..
1)
GGA126.1E/T..
1)
GGA326.1E/T..
1)
10, 12
7