Attachments
Spring return actuator
FKR-EU
1
FKR-EU with spring return
actuator type BFN
FKR-EU-FL with spring
return actuator BF
FKR-EU with spring return actuator
– An open/close actuator allows for the remote
control of the fire damper and/or release
by a suitable duct smoke detector
– If the supply voltage fails, or with thermoelectric
release, the damper closes (power off to close)
– Fire dampers with spring return actuators
can be functionally checked
OPEN/CLOSED/ OPEN
– Two integral limit switches with volt-free
contacts enable the damper blade position
indication (OPEN and CLOSED)
– Ambient temperature,
normal operation –30 to 50 °C
– BFN24-T-ST TR or BF24-T-ST-2 TR: The
connecting cables of the spring return actuator
are fitted with plugs (which ensure quick and
easy connection to the TROX AS-i bus system)
– A conversion kit is available for adding
an actuator to the standard construction
– In case of conventional wiring (Z45)
the voltage is supplied by a safety transformer
– For technical data and wiring examples refer to
the additional technical leaflet 'Attachments for
fire dampers'
FKR-EU with explosion-proof
spring return actuator
– An open/close actuator allows for the remote
control of the fire damper and/or release
by a suitable duct smoke detector
– The fire damper can be used in supply
and extract air systems in areas
with potentially explosive atmospheres
– If the supply voltage fails, or with thermoelectric
release, the damper closes (power off to close)
– Fire dampers with spring return actuators
can be functionally checked
OPEN/CLOSED/ OPEN
– Two integral limit switches with volt-free
contacts enable the damper blade position
indication (OPEN and CLOSED)
– The electrical connection is made in
the explosion-proof terminal box
– Release temperature
of the spring return actuator is 72 °C
– Declaration of conformity:
TÜV 13 ATEX 128437 X
– For technical data and wiring examples
refer to the supplementary technical leaflet
"Attachments for fire dampers" and to the
supplementary operating manual
"Explosion- proof fire dampers, Type FKR-EU"
ZEX1: Zone 1, 2, 21, 22
ZEX3: Zone 2, 22
Description
For detailed information
on the spring return
actuator see Chapter 1.2
K4 – 1.1 – 22
/
Z43
/
Z45
Order code detail
Description
FKR-EU with explosion-
proof spring return
actuator
For detailed information
on the spring return
actuator see Chapter 1.2
/ ZEX1
/ ZEX3
Order code detail
Attachments
Order code
ExMax-15-BF TR
ZEX1
RedMax-15-BF TR
ZEX3
Attachments
Order code
BFN230-T TR / BF230-T-2 TR
Z43
BFN24-T-ST TR / BF24-T-ST-2 TR
Z45
Spring return actuator type BFN for FKR-EU with a nominal size up to 400 mm.
Spring return actuator BF for FKR-EU with a nominal size up to 450 mm.
ATEX certification
ATEX areas of application for the FKR-EU
Attachments
Release mechanism
Marker
Ambient temperature
ExMax-15-BF TR
ExPro-TT
II 2 D c T80 °C
II 2 G c IIC T6
–40 to 40 °C
RedMax-15-BF TR
II 3D c T80 °C II
3G c IIC T6
03/2017 – DE/en
TOC
