
Electronic control board
ELECTRICAL SPECIFICATIONS FD25 FUSE ONLY FD25/FD40 FUSE ONLY UPGRADABLE TO SOLENOID
ACTUATOR
Nominal voltage N/A Solenoid: 24/48 VDC
(automatic change on the electronic card)
Power N/A
Dual voltage SOLENOID:
Break of current: Pnom = 1.6W
Emission of current: Pmax = 3.5 W
Switching capacity of the FDCU
and FDCB contactors
1mA…500mA,
5VDC…48VDC 1mA…500mA, 5VDC…48VDC
Blade closure time
Blade opening time
Spring: 1 second
Manual Spring: 1 second
Degree of protection IP 42 IP 42
8. OTHER MECANISMS
Belimo
Operation
Damper is delivered in closed position. When
electric actuator is connected to the power
supply damper will open. When the damper
reaches the end position (damper open), in
which is it blocked, the electromotor will stop.
when a power failure occurs. Thermal tripping
(inside or outside duct). If checking is needed
the switch on the thermal tripping device will
close damper. When switch on tripping device
is released, the damper will open.
Damper can be opened without connecting
to a voltage with enclosed handle turning in
the direction of the arrow on electric actua
tor (clockwise). Damper can be locked in the
desired position by fast turning back handle
limo BF, and by puling brake on Belimo BFL
and BFN.
To unlock the electromotor, turn handle clock
release brake for Belimo BFL and BFN. After re
lease, damper will be closed by return spring.
When damper is opened manually, electric
actuator will not move the damper into closed
fuse).
Wiring diagram
Type of Belimo actuator BFL24-T BFN24-T BFL230-T BFN230-T BF24-T BF230-T
Nominal
voltage /
power con-
sumption
voltage AC/DC 24V,
50/60Hz AC 24V,
50/60Hz AC 230V,
50/60Hz AC 230V,
50/60Hz AC/DC 24V,
50/60Hz AC 230V,
50/60Hz
opening 2,5 W 4 W 3,5 W 5 W 7 W 8.5 W
holding 0,8 W 1,4 W 1,1 W 2,1 W 2 W 3 W
for wire sizing 4 VA 6 VA 6,5 VA 10 VA 10 VA 11 VA
End switch 1 mA...3 A
(0,5 A), DC 5
V...AC 250V
1 mA...3 A
(0.5 A), DC 5
V...AC 250 V
1 mA...3 A
(0.5 A), DC 5
V...AC 250 V
1 mA...3 A
(0.5 A), DC 5
V...AC 250 V
1 mA...6 A (3
A), DC 5 V...
AC 250 V
1 mA...3 A
(0.5 A), DC 5
V...AC 250 V
Running
time
motor <60 s <60 s <60 s <60 s <120 s <120 s
spring-return ~20 s ~20 s ~20 s ~20 s ~16 s ~16 s
Ambient temperature range min. -30°C, max. 50°C