Dimensions [mm] / Weight [kg]
Nominal size DN 315 355 400 450 500 560 630 710 800
ÆD 314 354 399 449 499 559 629 709 799
A 31 36
ÆD
1
352 392 438 488 538 600 670 750 840
α
45 ° 30 ° 22.5 °
No. of holes 8 12 16
Weight 10.2 10.7 11.9 17.4 19.7 21.3 24.6 29.0 31.9
Spring return actuator type ExMax-15-BF TR / RedMax-15-BF TR
Supply voltage 24 - 240 V AC/DC, ± 10 % each,
self-adaptive 50 - 60 Hz ± 20 %
Power rating 16 W / 15 VA
Switch-on current (< 1 s) 2 A
Run time Actuator / spring return 30 s / 10 s
Limit switch Type of contact 2 changeover contact
Switching voltage 230 V AC / 24 V DC
Switching current 0.4 mA – 3 A
IEC protection class / IP protection I (earthed) / IP66
Storage temperature -40 ... +55 °C
Ambient humidity ≤ 90% rh, non-condensing
2.3 ATEX areas of application
ATEX application ranges, depending on the type of release mechanism, actuation, ambient temperature and
airflow velocity
Release
mechanism
Type of actuation Labelling Ambient tempera-
ture
Maximum airflow
velocity
Fusible link Spring mechanism II 2G Ex h IIC T6 Gb
II 2D Ex h IIIC T80°C Db
-40 °C ≤ Ta ≤ +50 °C 8 m/s
Fusible link
and limit switch
Spring mechanism II 2G Ex h IIC T6 Gb
II 2D Ex h IIIC T80°C Db
-20 °C ≤ Ta ≤ +50 °C 8 m/s
ExPro-TT ExMax-15-BF TR II 2G Ex h IIC T6 Gb
II 2D Ex h IIIC T80°C Db
-40 °C ≤ Ta ≤ +40 °C 10 m/s
ExPro-TT ExMax-15-BF TR II 2G Ex h IIC T5 Gb
II 2D Ex h IIIC T95°C Db
-40 °C ≤ Ta ≤ +50 °C 10 m/s
ExPro-TT RedMax-15-BF TR II 3G Ex h IIC T6 Gc
II 3D Ex h IIIC T80°C Dc
-40 °C ≤ Ta ≤ +40 °C 10 m/s
ExPro-TT RedMax-15-BF TR II 3G Ex h IIC T5 Gc
II 3D Ex h IIIC T95°C Dc
-40 °C ≤ Ta ≤ +50 °C 10 m/s
Technical data
ATEX areas of application
Explosion-proof fire damper FKR-EU 9
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