Belimo SRF230A-S2-5-O Technical Data Sheet Download Page 1

www.belimo.com

T5-SRF230A-S2-5(-O) • en • v1.0 • 05.2010 • Subject to changes

1 / 3

Technical data sheet

SRF230A-S2-5(-O)

Rotary actuator with emergency function 

for butterfly valves
• Tor�ue 20 �m

Tor�ue 20 �m

 20 �m

• �ominal voltage AC 230 V

• Control�� O�en-close

Control�� O�en-close

• Two integrated au�iliary switches

Two integrated au�iliary switches

• SRF230A-S2-5�� �eenergised �C

SRF230A-S2-5�� �eenergised �C 

SRF230A-S2-5-O�� �eenergised �O

Technical data

Electrical data

Nominal voltage

AC 230 V, 50/60 Hz

Nominal voltage range

AC 195 ... 264 V

Power consumption In operation

At rest

For wire sizing

6.5 W @ nominal torque

3.5 W

18 VA

Auxiliary switch

2 x SPDT, 1 mA ... 3 (0.5) A, AC 250 V 

(1 x fix 10% / 1 x adjustable 11 ... 100%)

Connection Motor

Auxiliary switch

Cable 1 m, 2 x 0.75 mm

2

Cable 1 m, 6 x 0.75 mm

2

Parallel connection

Yes (Note  performance data for supply!)

Functional data

Torque Motor

Spring return

Min. 20 Nm @ nominal voltage

Min. 20 Nm

Direction of rotation Spring return

– SRF230A-S2-5

– SRF230A-S2-5-O

Deenergised NC, butterfly valve closed (A – AB = 0%)

Deenergised NO, butterfly valve open (A – AB = 100%)

Manual override

With hand crank and interlocking switch

Angle of rotation

Max. 90°

Running time Motor

Spring return

≤75 s / 90°

≤20 s @ –20 ... 50°C / max. 60 s @ –30°C

Sound power level Motor

Spring return

≤45 dB (A)

≤62 dB (A)

Position indication

Mechanical

Safety

Protection class

II

 totally insulated 

Degree of protection

IP54

EMC

Low-voltage directive

CE according to 2004/108/EC

CE according to 2006/95/EC

Certification

Certified to IEC/EN 60730-1 and IEC/EN 60730-2-14

Mode of operation

Type 1.AA.B

Rated impulse voltage Actuator

Auxiliary switch

4 kV

2.5 kV

Control pollution degree

3

Ambient temperature

–30 ... +50°C

Media temperature

+5 ... +100°C (in butterfly valve)

Non-operating temperature

–40 ... +80°C

Ambient humidity

95% r.h., non-condensating

Maintenance

Maintenance-free

�imensions / Weight

Dimensions

See «Dimensions» on page 3

Weight

Approx. 2.2 kg (without butterfly valve)

Reviews: