Fire damper BKA-EN
Additional operating instructions according to ATEX 2014/34/EU
Models and dimensions
Construction subject to change
No return possible
Version: 2020-07-10 | Page 7
Electric spring return actuator ExMax-5.10-BF
(X14/X15)
ExMax-5.10-BF (X14/X15)
Figure 3: Circuit diagram actuator ExMax-5.10-BF (X14/X15)
Electric explosion-protected spring return actuators
with safety temperature limiter (ExPro-TT).
Release temperatures 72 °C.
Operating position (damper "OPEN") and tension-
ing of the return spring by applying the supply volt-
age (universal power supply 24 - 240 VAC/DC)
Safety position (damper "CLOSED") through spring
force when supply voltage is interrupted or the tem-
perature fuses (room temperature or internal duct
temperature) respond. A response of the thermal
fuses will interrupt the sensor circuit permanently
and irrevocably.
End position signalling by integrated auxiliary
switches, switching at an angle of rotation of 5° and
85°.
An on-site functional check is possible by means of
the control key of of the safety temperature limiter
Attention!
Safety function is only guaranteed if the actuator has been
connected to the supply voltage in accordance with regula-
tions.
Technical data actuator ExMax-5.10-BF
(X14/X15)
Power supply
24…240 V AC/DC,
±
10% each,
self adaptable
Frequency
50...60 Hz
±
20%
Power consumption
Holding
max. 20 W
Heating capacity approx. 16 W
Current on making approx. 2.0 A at 24 V for approx. 1
sec.
Running time Motor
30s
Spring return
10s
Auxiliary switch
2 integrated, permanently set, po-
tential-free auxiliary switches with
changeover contact
Switching voltage 24 V DC / 230 V AC
Switch voltage
0.5 mA - 3 A
Switching points Angles of rotation: 5° / 85°
Protection class
I (earthed)
Protection type according
to DIN 60529
IP66
Tested according to EMC
2004/108/EC
Safety tested
2006/95/EC
Ambient temperature
(operation)
-40 ... +40°C
Ambient humidity
≤
95%, non-condensing
Table 4: Technical data actuator ExMax-5.10-BF (X14/X15)
Connection ExMax-5.10-BF (X14/X15)
Open/closed 1-wire spring Ex-i circuit SB 7.0
integrated, permanently set auxiliary
switch, max. 24V/3A, 240V/0.5A switch-
ing at an angle of rotation 5° and 85°.
The voltage on the auxiliary switch must
be identical to the supply voltage and
protected by an identical fuse.
Ex-i circuit for
passive, potential-free
pushbuttons provided by the cus-
tomer and
thermally activated safety release
device
(type
ExPro-TT
)
BSK
24…240 VAC/DC
Standard connection = spring return in ~ 10 sec.
Heating
Button
! Attention!
For a 1-wire control,
the heating is not ac-
tive
when the contact is in-
