Technical data sheet EF230A-S2Certification Certified to IEC/EN 60730-1 and IEC/EN 60730-2-14 cULus according to UL 60730-1A and UL 60730-2-14 and CAN/CSA E60730-1:02 Mode of operation

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Technical data sheet EF230A-S2

Spring return actuator with emergency function for adjusting air dampers in ventilation and air conditioning systems in buildings• For air dampers up to approx. 6 m2

• Tor�ue 30 �mTor�ue 30 �m 30 �m• �ominal voltage A�� 230 �ominal voltage A�� 230 � A�� 230 �• ��ontrol: Open-close• Two integrated auxiliary switchesTwo integrated auxiliary switches

Technical data

Electrical data Nominal voltage AC 230 V, 50/60 HzNominal voltage range AC 90 ... 264 VPower consumption In operation

At restFor wire sizing

9 W @ nominal torque4.5 W21 VA

Auxiliary switch 2 x SPDT, 1 mA ... 3 (0.5) A, AC 250 V (1 x fix 10% / 1 x adjustable 10 ... 90%)

Connection MotorAuxiliary switch

Cable 1 m, 2 x 0.75 mm2

Cable 1 m, 6 x 0.75 mm2

Functional data Torque MotorSpring return

Min. 30 Nm @ nominal voltageMin. 30 Nm

Direction of rotation Can be selected by mounting L / RManual override With hand crank and interlocking switchAngle of rotation Max. 95° , can be limited with

adjustable mechanical end stopRunning time Motor

Spring return≤75 s (0 ... 30 Nm)≤20 s @ –20 ... 50°C / max. 60 s @ –30°C

Sound power level MotorSpring return

≤55 dB (A)≤71 dB (A)

Service life Min. 60,000 emergency positionsPosition indication Mechanical

Safety Protection class II Totally insulated Protection mode IP54

NEMA2, UL Enclosure Type 2EMCLow-voltage directive

CE according to 2004/108/ECCE according to 2006/95/EC

Certification Certified to IEC/EN 60730-1 and IEC/EN 60730-2-14cULus according to UL 60730-1A and UL 60730-2-14and CAN/CSA E60730-1:02

Mode of operation Type 1.AA.BRated impulse voltage Actuator

Auxiliary switch2.5 kV2.5 kV

Control pollution degree 3Ambient temperature –30 ... +50°CNon-operating temperature –40 ... +80°CAmbient humidity 95% r.h., non-condensatingMaintenance Maintenance-free

Dimensions / Weight Dimensions See «Dimensions» on page 3Weight Approx. 4.6 kg

EF230A-S2 Spring return actuator, A�� 230 �, 30 �m,with two auxiliary switches

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Safety notes

!• The actuator is not allowed to be used outside the specified field of application, especially in

aircraft or in any other airborne means of transport.• ��aution: Power supply voltage!• It may only be installed by suitably trained personnel. Any legal regulations or regulations

issued by authorities must be observed during assembly.• The device may only be opened at the manufacturer's site. It does not contain any parts that

can be replaced or repaired by the user.• The cables must not be removed from the device.• When calculating the re�uired tor�ue, the specifications supplied by the damper manufacturers

(cross-section, design, installation site), and the air flow conditions must be observed.• The integrated switches of this actuator have to be connected either to Power supply voltage

or safety extra low voltage. The combination Power supply voltage / safety extra low voltage is not allowed.

• The device contains electrical and electronic components and is not allowed to be disposed of as household refuse. All locally valid regulations and re�uirements must be observed.

Product features

Mode of operation The actuator moves the damper to the operating position at the same time as tensioning the return spring. The damper is turned back to the emergency position by spring force if the supply voltage is interrupted.

Simple direct mounting Simple direct mounting on the damper spindle with a universal spindle clamp, supplied with an anti-rotation strap to prevent the actuator from rotating.

Achsstabilisator Der Klemmbock des Federrücklaufantriebs ist werksseitig mit einem Achsstabilisator für die Stabilisierung der Kombination Klappe, Klappenachse und Antrieb ausgerüstet. Dieser besteht aus zwei Kunststoff-Stützringen und muss je nach Montagesituation und Achsdurchmesser belassen, teilweise oder komplett entfernt werden.Langachsmontage:• Bei Langachsmontage mit einem Achsdurchmesser von 12 bis 20 mm ist der Einsatz des

Achsstabilisators notwendig.• Bei Langachsmontage mit einem Achsdurchmesser von 21 bis 26,7 mm ist der Einsatz des

Achsstabilisators nicht notwendig und kann entfernt werden.Kurzachsmontage:• Bei Kurzachsmontage entfällt die Notwendigkeit des Achsstabilisators, er kann entfernt oder

– falls es die Achslänge zulässt – im Klemmbock belassen werden.Weitere Hinweise siehe Montageanleitung.

Manual override Manual operation of the damper with the hand crank, locking in any position with the interlocking switch. Unlocking is manual or automatic by applying the operating voltage.

Adjustable angle of rotation Adjustable angle of rotation with mechanical end stop.

High operational reliability The actuator is overload-proof, requires no limit switches and automatically stops when the end stop is reached.

Flexible signalization The actuator has one auxiliary switch with a fixed setting and one adjustable auxiliary switch. They permit a 10% or 10 ... 90% angle of rotation to be signalled.

�otes• Caution: Power supply voltage!• Parallel connection of other actuators possible.

Note the performance data.

!

Electrical installation

Wiring diagram

1 2 S1 S2 S3 S4 S5 S6

<A >A

<B >B

A = 10% B = 10 ... 90%

N L230 V +

+

++

230 V24 V 24 V

230 V 24 V24 V 230 V

���able colours:1 = blue2 = brownS1 = violetS2 = redS3 = whiteS4 = orangeS5 = pinkS6 = grey

ImportantThe spindle stabiliser must nonetheless be used when the universal mounting bracket is installed on the opposite side of the spindle clamp and with a spindle diameter <20 mm.

!

EF230A-S2 Spring return actuator, A�� 230 �, 30 �m,with two auxiliary switches

www.belimo.com T5-EF230A-S2 • en • v1.0 • 07.2011 • Subject to changes 3 / 3

Accessories

Description

Mechanical accessories Various accessories

Dimensions [mm]

Dimensional drawings 80

2713

.5

12.5

3550

35 143188238272322

112 138

Damper spindle Length≥117 12 ... 26,7 >12 < 25,2≥20 12 ... 26,7 >12 < 25,2

12 ... 22 mm 12 ... 18 mm

22 ... 26.7 mm 12 ... 18 mm

Accessories

Description

Mechanical accessories Position indicator IND-EFBClamp K9-2Crank arm KH-EFBCrank arm adaptor kit ZG-EFB

EF..A..

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7130

5-00

001.

C

≥ 20 mm

Y=0Y=0

1

.9

.8.7.6.5

.4

.3

.2

.1

0

≥ 117 mm

< 16 mm

< 20 mm< 26.7 mm

Y=0Y=0

1

.9

.8.7.6.5

.4

.3

.2

.1

0

< 16 mm

< 20 mm< 26.7 mm

BA

12 ... 22 mm 12 ... 18 mm

22 ... 26.7 mm 12 ... 18 mm

12 ... 22 mm 12 ... 18 mm

22 ... 26.7 mm 12 ... 18 mm

EF..A..

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Y=0

Y=0

INOX ∅ 12 mm

25 Nm

15 Nm13

Y=0 Y=0

1

.9.8 .7

.6

40 ... 100%

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22 Nm

∅ 22.6 mm

3 x 6 ... 8 mm

8 ... 11 mm

11 ... 15 mm

26.5 mm

∅ ≤2.5 mm2

EF..A..IP66/NEMA4

6.5 mm ≤ 2.5 mm2

EF..A..

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AC24V/DC24V

1 2

– +

T ~

1 2

– +

T ~

S1 S2 S3 S4 S5 S6

<A >A

<B >B

A = 10% B = 10 ... 90%

230 V ++

++

230 V24 V 24 V

230 V 24 V24 V 230 V

�

EF24A EF24A-S2

AC100...240V

1 2

N L

1 2 S1 S2 S3 S4 S5 S6

<A >A

<B >B

A = 10% B = 10 ... 90%

N L 230 V ++

++

230 V24 V 24 V

230 V 24 V24 V 230 V

�

EF230A EF230A-S2

!

AC24V/DC24V

Y U

1 32 5

DC 0 … 10 V DC 2 … 10 V

– +

T ~

Y U

1 32 5

DC 0(2) … 10 V MP

– +

T ~

EF24A-SREF24A-MF

EF24A-MP

1 32 5

YU

DC 0 … 10 V DC 2 … 10 V

– +

T ~

S1 S2 S3 S4 S5 S6

<A >A

<B >B

A = 10% B = 10 ... 90%

230 V ++

++

230 V24 V 24 V

230 V 24 V24 V 230 V

�

EF24A-SR-S2

Y = 0 Y = 0 Y = 0 Y = 0

RL

EF24A-SREF24A-SR-S2