Fire damper - FDMRPage 12 Version 2023-06-15
TPM 140/19
■ Design with the communication and supply device BKN
230-24 and actuator BF 24-TN-ST (BFL 24-T-ST, BFN 24-T-
ST). It simplifies electrical wiring and interconnection of
fire dampers. It facilitates on site check and enables
central control and checks of fire dampers by means of a
simple 2-conductor wiring.
■ BKN 230-24 functions as a decentralized network device
for supplying the actuator BF 24-TN-ST (BFL 24-T-ST, BFN
24-T-ST) further it transmits the signal informing about
the damper blade position OPERATION and FAILURE
through 2-conductor wiring to the central.
■ Control command SWITCHED ON - SWITCHED OFF from
the central through BKN 230-24 goes through the same
wiring to the actuator.
■ To simplify the connection, the actuator BF 24-TN-ST (BFL
24-T-ST, BFN 24-T-ST) is equipped with connecting plugs
that are inserted directly to BKN 230-24. BKN 230-24 is
supplied with a conductor and an EURO plug to be
connected to the 230V mains. 2-conductor wiring is
connected to BKN 230-24 by means of terminals 6 and 7.
If the actuator is supposed to be controlled without any
signal from the central, it can be switched on by means of
a bridge between the terminals 3 and 4.
■ A green LED on BKN 230-24 is on when voltage is present
in the drive (AC 24V).
■ If the test button on BAT is pressed or if the power supply
(e.g. by a signal from ELECTRICAL FIRE SIGNALISATION ) is
disconnected, the damper blade position will be
"FAILURE".
Design .60
Communication and supply device BKN 230-24
Nominal voltage AC 230 V 50/60Hz
Power consumption 3,5 W (operating position)
Dimensioning 11 VA (including actuator)
Protection Class II
Degree of protection IP 40
Ambient temperature
Non-operating temperature
-20°C … +50°C
-40°C … +80°C
Connection - net
- motor
- terminal board
cable 0,9 m with EURO plug type 26
6-pole connector, 3-pole connector
screw terminals for cable 2x1,5 mm²
Communication and supply device BKN 230-24, with actuator BF 24-TN-ST (BFL 24-T-ST, BFN 24-T-ST)
1) Bridge has been installed by the manufacturer. If needed, it can be removed ad re-
placed with a thermoelectric activation device. If terminals 1 and 2 are not intercon-
nected, safety function is initiated.
2) Bridge can be used only for starting and without BKS24… !
Two conductor wiring to BKS24
Design with the communication and supply device
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