00131950_0
Actuator LM24A


00131950_0

OPEN/CLOSE ACTUATORS 

For the opening and closing of shut-off dampers in air conditioning systems

Actuators for Type AK or AKK shut-off dampers

  • Change of the damper blade position for two different operating situations
  • Supply voltage 24 V AC/DC or 230 V AC or operating pressure 1 bar
  • Control input signal: 1-wire control or 2-wire control (3-point)
  • Mechanical stops
  • Retrofit possible

Application

Application

  • Actuators for opening and closing
  • Opening and closing of Type AK or AKK shut-off dampers

Description

Parts and characteristics

  • Mechanical stops for setting the damper blade positions
  • Electric or pneumatic operation
  • Overload protection
  • Control input signal: 1-wire control, 2-wire control (3-point) or pneumatic control
  • Optional spring return actuator for damper blade safety function
  • Optional auxiliary switch for capturing the end positions

Information technique

Function, Technical data, Produktbeziehungen

  • Function
  • Technical data

Functional description

The actuator opens or closes the damper blade.

Minimum and maximum positions can be set using mechanical stops.

1-wire control or 2-wire control (3-point) can be used.

1-wire control is actually an open/close control.


A spring return actuator moves the damper blade to the safe position in case of a power failure. Define the safe position with the order code: NC (normally closed) or NO (normally open). The spring return actuator is factory set according to the safe position.

The normal position of the damper blade is only achieved with 1-wire control (control voltage).

Control options and effect of actuator action in case of factory setting

Order code detail Function Control Direction of rotation
Order code detail Function Control 1 2

B30, B32

Open/close

1-wire control, 2-wire control

CLOSED

OPEN

B40, B42

Open/close

1-wire control, 2-wire control

CLOSED

OPEN

BP0, BP2

Open/close

1-wire control (spring return)



BR0, BR2

Open/close

1-wire control (spring return)




Actuators LM24A and LM24A-F

Supply voltage (AC)

24 V AC ± 20 %, 50/60 Hz

Supply voltage (DC)

24 V DC ± 20 %

Power consumption – load

1 W

Power consumption – idle

0.2 W

Power rating

1.5 VA

Torque

5 Nm

Running time for 90°

150 s

Control input signal

1-wire control or 2-wire control (3-point)

Connecting cable

3 × 0.75 mm², 1 m long

IEC protection class

III (protective extra-low voltage)

Protection level

IP 54

EC conformity

EMC to 2014/30/EU, RoHS to 2011/65/EU

Operating temperature

–30 to 50 °C

Weight

0.5 kg


Actuator LM230A and LM230A-F

Supply voltage

100 – 240 V AC –15 % +10 %, 50/60 Hz

Power consumption – load

1.5 W

Power consumption – idle

0.5 W

Power rating

3.5 VA

Torque

5 Nm

Running time for 90°

150 s

Control input signal

1-wire control or 2-wire control (3-point)

Connecting cable

3 × 0.75 mm², 1 m long

IEC protection class

II (protective insulation)

Protection level

IP 54

EC conformity

EMC to 2014/30/EU, low voltage to 2014/35/EU, RoHS to 2011/65/EU

Operating temperature

–30 to 50 °C

Weight

0.5 kg


Auxiliary switch S2A

Type of contact

2 changeover contacts1)

Max. switching voltage (AC)

250 V AC

Max. switching current (AC)

3 A (resistive load); 0.5 A (inductive load)

Max. switching voltage (DC)

110 V DC

Max. switching current (DC)

0.5 A (resistive load); 0.2 A (inductive load)

Connecting cable

6 × 0.75 mm², 1 m long

IEC protection class

II (protective insulation)

Protection level

IP 54

EC conformity

EMC to 2014/30/EU, low voltage to 2014/35/EU, RoHS to 2011/65/EU

Operating temperature

–30 to 50 °C

Weight

0.250 kg

1) If both auxiliary switches are used the switching voltages must be the same


Spring return actuator NF24A

Supply voltage (AC)

24 V AC ± 20 %, 50/60 Hz

Supply voltage (DC)

24 V DC –10 %, +20 %

Power consumption – load

6 W

Power consumption – idle

2.5 W

Power rating

8.5 VA

Torque

10 Nm

Motor running time for 90°

< 75 s

Spring return time

20 s (for < −20 °C up to 60 s)

Control input signal

Supply voltage on/off

Connecting cable

2 × 0.75 mm², 1 m long

IEC protection class

III (protective extra-low voltage)

Protection level

IP 54

EC conformity

EMC to 2014/30/EU, RoHS to 2011/65/EU

Operating temperature

–30 to 50 °C

Weight

1.8 kg


Spring return actuator NF24A-S2

Supply voltage (AC)

24 V AC ± 20 %, 50/60 Hz

Supply voltage (DC)

24 V DC –10 %, +20 %

Power consumption – load

6 W

Power consumption – idle

2.5 W

Power rating

8.5 VA

Torque

10 Nm

Motor running time for 90°

< 75 s

Spring return time

20 s (for < −20 °C up to 60 s)

Control input signal

Supply voltage on/off

Auxiliary switch: type of contact

2 changeover contacts1)

Max. switching voltage (AC)

250 V AC

Max. switching current (AC)

3 A (resistive load); 0.5 A (inductive load)

Max. switching voltage (DC)

110 V DC

Max. switching current (DC)

0.5 A (resistive load); 0.2 A (inductive load)

Connecting cable – actuator

2 × 0.75 mm², 1 m long

Connecting cable – auxiliary switch

6 × 0.75 mm², 1 m long

IEC protection class

III (protective extra-low voltage)

Protection level

IP 54

EC conformity

EMC to 2014/30/EU, RoHS to 2011/65/EU

Operating temperature

–30 to 50 °C

Weight

2.0 kg

1) If both auxiliary switches are used the switching voltages must be the same


Spring return actuator NFA

Supply voltage (AC)

24 – 240 V AC –20 % +10 %, 50/60 Hz

Supply voltage (DC)

24 – 125 V DC ±10 %

Power consumption – load

6 W

Power consumption – idle

2.5 W

Power rating

9.5 VA

Torque

10 Nm

Motor running time for 90°

< 75 s

Spring return time

20 s (for < −20 °C up to 60 s)

Control input signal

Supply voltage on/off

Connecting cable

2 × 0.75 mm², 1 m long

IEC protection class

II (protective insulation)

Protection level

IP 54

EC conformity

EMC to 2014/30/EU, low voltage to 2014/35/EU, RoHS to 2011/65/EU

Operating temperature

–30 to 50 °C

Weight

2.0 kg


Spring return actuator NFA-S2

Supply voltage (AC)

24 – 240 V AC –20 % +10 %, 50/60 Hz

Supply voltage (DC)

24 – 125 V DC ±10 %

Power consumption – load

6 W

Power consumption – idle

2.5 W

Power rating

9.5 VA

Torque

10 Nm

Motor running time for 90°

< 75 s

Spring return time

20 s (for < −20 °C up to 60 s)

Control input signal

Supply voltage on/off

Auxiliary switch: type of contact

2 changeover contacts1)

Max. switching voltage (AC)

250 V AC

Max. switching current (AC)

3 A (resistive load); 0.5 A (inductive load)

Max. switching voltage (DC)

110 V DC

Max. switching current (DC)

0.5 A (resistive load); 0.2 A (inductive load)

Connecting cable – actuator

2 × 0.75 mm², 1 m long

Connecting cable – auxiliary switch

6 × 0.75 mm², 1 m long

IEC protection class

II (protective insulation)

Protection level

IP 54

EC conformity

EMC to 2014/30/EU, low voltage to 2014/35/EU, RoHS to 2011/65/EU

Operating temperature

–30 to 50 °C

Weight

2.2 kg

1) If both auxiliary switches are used the switching voltages must be the same


Pneumatic actuator B555DC2

Control pressure

0.2 – 1.0 bar

Maximum pressure

2.0 bar

Compressed air

Compressed air for instruments, free of oil, water and dust

Weight

0.840 kg


Variants

  • Variants

Any attachments are to be defined with the order code of the shut-off damper.

B3*

Application

  • Actuator LM24A
  • Opening and closing of Type AK or AKK shut-off dampers

Variants

  • B32: with auxiliary switch for capturing the end positions

Parts and characteristics

  • Supply voltage 24 V AC/DC
  • 1-wire control or 2-wire control (3-point)
  • Mechanical stops for setting the volume flow rate setpoints
  • Switch for setting the direction of rotation
  • Release button to allow for manual operation

Installation and commissioning

  • Change the direction of rotation if necessary, using the switch

B4*

Application

  • Actuator LM230A
  • Opening and closing of Type AK or AKK shut-off dampers

Variants

  • B42: with auxiliary switch for capturing the end positions

Parts and characteristics

  • Supply voltage 100 – 240 V AC
  • 1-wire control or 2-wire control (3-point)
  • Mechanical stops for setting the volume flow rate setpoints
  • Switch for setting the direction of rotation
  • Release button to allow for manual operation

Installation and commissioning

  • Change the direction of rotation if necessary, using the switch

B*2

Application

  • Auxiliary switch S2A for capturing damper blade end positions (end positions reached through actuator operation)
  • Volt-free contacts for signalling or activating switch functions
  • Two integral switches, e.g. for damper blade OPEN and damper blade CLOSED
  • Potentiometer for setting any switch point

BP0

Application

  • Pneumatic actuator NF24A for the opening and closing of Type AK or AKK shut-off dampers
  • Opening and closing with safety function
  • The safety function of the shut-off damper is defined with the order code

Parts and characteristics

  • Supply voltage 24 V AC/DC
  • Control input signal: Supply voltage on/off
  • Mechanical stops for setting the volume flow rate setpoints
  • Manual operation using crank handle and position lock

BP2

Application

  • Spring return actuator NF24A-S2 with integral auxiliary switches for the opening and closing of Type AK or AKK shut-off dampers
  • Opening and closing of shut-off dampers with safety function
  • The safety function of the shut-off damper is defined with the order code

Parts and characteristics

  • Supply voltage 24 V AC/DC
  • Control input signal: Supply voltage on/off
  • Mechanical stops for setting the volume flow rate setpoints
  • Manual operation using crank handle and position lock
  • One fixed and one adjustable auxiliary switch for signalling rotation angles of 10 % and 10 – 90 %.
  • Fixed auxiliary switch, switching point 10 %
  • Adjustable auxiliary switch, switching point 10 – 90 %

BR0

Application

  • Pneumatic actuator NFA for the opening and closing of Type AK or AKK shut-off dampers
  • Opening and closing with safety function
  • The safety function of the shut-off damper is defined with the order code

Parts and characteristics

  • Supply voltage 24 – 240 V AC/24 – 125 V DC
  • Control input signal: Supply voltage on/off
  • Mechanical stops for setting the volume flow rate setpoints
  • Manual operation using crank handle and position lock

BR2

Application

  • Spring return actuator NFA-S2 with integral auxiliary switches for the opening and closing of Type AK or AKK shut-off dampers
  • Opening and closing with safety function
  • The safety function of the shut-off damper is defined with the order code

Parts and characteristics

  • Supply voltage 24 – 240 V AC or 24 – 125 V DC
  • Control input signal: Supply voltage on/off
  • Mechanical stops for setting the volume flow rates
  • Manual operation using crank handle and position lock
  • Two auxiliary switches with volt-free contacts for signalling or activating switch functions
  • Fixed auxiliary switch, switching point 10 %
  • Adjustable auxiliary switch, switching point 10 – 90 %

TN0

Application

  • Pneumatic actuator B555DC2 for the opening and closing of Type AK or AKK shut-off dampers
  • Opening and closing with safety function
  • The safety function of the shut-off damper is defined with the order code

Parts and characteristics

  • Control pressure 0.2 – 1 bar
  • Control input signal: pneumatic, control pressure on/off
  • Piston rod with 85 mm stroke
  • When the control pressure increases, the piston rod extends; it retracts by means of the spring force

Actuators for Type AK or AKK shut-off dampers

Order code detail Actuator Auxiliary switch
Order code detail Part number Type Supply voltage Part number Type

B30

M466DU5

LM24A

24 V

B32

M466DU5

LM24A

24 V

M536AI3

S2A

B40

M466DU4

LM230A

230 V

B42

M466DU4

LM230A

230 V

M536AI3

S2A

BP0

M466ET0

NF24A spring return actuator

24 V

BP2

M466ET2

NF24A-S2 spring return actuator

24 V


integrated

BR0

M466ET1

NFA spring return actuator

24 – 240 V AC 24 – 125 V DC

BR2

M466ET3

NFA-S2 spring return actuator

24 – 240 V AC 24 – 125 V DC


integrated

TN0

B555DC2

Pneumatic control

0.2 – 1 bar



Electrical connection

  • Electrical connection

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Contact

Nous sommes à votre disposition

Veuillez spécifier le sujet de votre requête et vos coordonnées.
Tel.: +33 1 56 70 54 54

Pièce jointe (max. 10MB)

Les champs marqués d'une étoile (*) sont obligatoires.

Contact

Merci pour votre message !

Votre message a été reçu par le Centre de Service et est en cours de traitement.
Notre département des demandes de service vous contactera sous peu.
Si vous avez des questions d'ordre général sur nos produits et services, vous pouvez également nous contacter à l'adresse suivante:
Tél .: +49 (0) 2845 2020 | Fax: +49 (0) 2845 202265