User Manual

3 Technical data
3.1 FKRS-EU with explosion-proof spring return actuator
Dimensions and weight
Fig. 1: FKRS-EU with explosion-proof spring return actuator
1.1 Enclosure
1.2 Damper blade with seal
1.4 Travel stop for CLOSED position
1.5 Inspection access (12 mm)
1.8 Lip seal
10.6 ExMax spring return actuator, alternative*
10.7* RedMax spring return actuator
10.13 Thermoelectric release mechanism ExPro-TT
with temperature sensor
1 Keep clear to provide access for operation
A Installation side
B Operating side
Dimensions [mm] / Weight [kg]
Nominal size DN 100 125 150 160 180 200 224 250 280 315
ÆD 99 124 149 159 179 199 223 249 279 314
Weight with spring return
actuator
4.8 5.1 5.3 5.5 5.8 6.0 6.2 6.8 7.3 7.9
Spring return actuator ExMax-15-BF TR/RedMax-15-BF-TR
Supply voltage 24 – 240 V AC/DC, ± 10 %,
self-adjusting 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 contacts
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, no condensation
Technical data
FKRS-EU with explosion-proof spring return actua...
Explosion-proof fire damper Type FKRS-EU
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