47
FIRE DAMPER - FD
MANUAL
ACTUATORS
R, R-S
Manual operating mechanism, optionally with end
switches (R-S). In case of fire, the fire damper closes
automatically. Damper closing can be initiated either
by thermal fuse melting, or by manual activation on the
operating mechanism. Upon closure, damper blade
is locked in closed position and can only be opened
manually. Thermal fuse melting point is 72 °C.
Wiring diagram
Technical specifications
Nominal voltage
N/A
Power
N/A
Switching capacity
1mA…500mA, 5VDC…48VDC
Blade closing time
Spring: 1 sec
Blade opening time
Manual
Manual activation
Release button on the casing
Degree of protection
IP 42
Ambient temperature
range
min. -30 °C, max. 50 °C
Ambient humidity
95% r.h.,
non-condensing
Service life
Min. 30,000 cycles
Maintenance
Maintenance-free
Weight R25/R40
0,5 kg / 1,7 kg
R25
(up to 800x600)
R40
(800x600 up to1500x800)
FC = Limit switch - end
DC = Limit switch - start
NO = normally open
NF = normally closed
C = common
FC
DC
NF NO
C
NF NO C
11 12 13 14 15 16
R25
R25 manual actuator is installed on FD25 fire
dampers range from 100x200 till 800x600. It is
available in version with (R-S) and without (R) end
switches. End switches and thermal fuse are easily
replaceable and available as service parts.
R40
R40 manual actuator is installed on FD40 fire
dampers from 800x600 till 1500x800. It is
available in version with (R-S) and without (R) end
switches. End switches, thermal fuse are easily
replaceable and available as service parts.
ACTUATORS
