![background image](http://html1.mh-extra.com/html/mandik/fdma/fdma_manual_4014682010.webp)
9
Design .41 or .51 with actuating mechanism can be complemented with smoke detector
MHG 231. The voltage can be AC 230 V or AC/DC 24 V. Design with voltage AC 230 V is
equpped with Communication and supply device BKN 230-24-MP and with actuating mechanism
BF 24-T (BFL 24-T, BFN 24-T).
The smoke detector is activated when smoke spreads in air duct system. Deactivation of smoke
detector is provided by interruption of supply voltage for min. 2s.
Signalisation of damper blade position "OPEN" a "CLOSE" is provided by two limit switches..
Nominal voltage
AC/DC 24 V
Voltage range
AC 18 … 28 V
DC 24 … 30 V
Power Consumption Socket
(without actuating mechanism)
max. 50mA
Degree of protection
IP 40
Ambient temperature
Non-operating temperature
- 25 °C … + 70 °C
- 5 °C … + 40 °C
Connection - net
- motor
- communication and supply device
BKN 230-24-MP
Cabel 1m, connected to terminal XT1
Screw terminals on the terminal block XT2
Screw terminals on the terminal block XT1 a XT2
Nominal voltage
AC 24 V 50/60 Hz
DC 24 V
AC 230 V 50/60 Hz
Power consumption - motoring
- holding
7 W
2 W
8 W
3 W
Dimensioning
10 VA (Imax 8,3 A @ 5 ms)
12,5 VA (Imax 500 mA @ 5 ms)
Protection class
III
II
Degree of protection
IP 54
Running time - motor
- spring return
140 sec
~ 16 sec
Ambient Temperature
- normal duty
- safety duty
- non-operating temperature
- 20 °C … + 50 °C
The safe position will be attained up to max. 75°C
- 40 °C … + 50 °C
Connecting - motor
- auxiliary switch
cable 1 m, 2 x 0,75 mm
cable 1 m, 6 x 0,75 mm
(BF 24-T-ST) with plug-in connectors
Thermal trips
Tf1: duct outside temperature Duct 72 °C
Tf2/Tf3: duct intside temperature Duct 72 °C
Summary of Contents for FDMA
Page 1: ......