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Manufacturer name
Belimo
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Manufacturer’s reference number
SRFA-O
Description text
Rotary actuator fail-safe NO, 20 Nm, AC 24...240 V / DC 24...125 V, Open/close, 75 s, IP54
Control
2-point (open/close)
Mechanical transmission
rotary
Actuator connection
interlocking
Shaft holder
interlocking
Applications
water
Product description
SRFA-O, Drehantrieb mit Notstellfunktion, 20 Nm, IP54
nominal/operating voltage
240 V
Type of nominal/operating voltage
AC/DC
min. Betriebsspannung (unterer Funktionsgrenze)
19.2 V
max. Betriebsspannung (oberer Funktionsgrenze)
264.0 V
nominal frequency (according to DIN EN 50160)
50/60 Hz
power consumption AC (in operation)
7.0 VA
max. power consumption AC (at rest)
3.5 VA
power consumption DC (in operation)
7.0 W
max. Leistungsaufnahme DC(Ruhe)
3.5 W
Switch-on current
0.0 A
Switch-on current duration regarding switch-on current field
0.0 ms
Max. ambient temperature
50 °C
min. ambient temperature
-30 °C
allowable ambient humidity (in operation)
95 % rF
condensation allowable
no
pollution degree
Pollution degree 3
degree of protection provided by enclosure
IP54
protection class
II, verstärkte Isolierung
Sound power level
45 dB(A)
mass (net)
2.200 kg
Part number of the standard
24
Procurement
Last updateMar 27, 2025, 10:57 AM
Part numberSRFA-O
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Last update: Mar 27, 2025, 10:57 AM
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