Open/Close actuators

Actuator LM24A

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

Technical information

Function, Technical data, Produktbeziehungen

1-wire control

Switch functions
S1 open: Direction of rotation 1
S1 closed: Direction of rotation 2

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

Actuator LM24A

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

LM24A, connecting cable core identification

1 ⊥, –: Ground, neutral
2 ~, +: Control voltage for direction of rotation 1
3 ~, +: Control voltage for direction of rotation 2

LM24A and LM24A-F

Downloads

product information

Product data sheet Type Open/Close actuators

Product data sheet 1,7 MB pdf

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OPEN/CLOSE ACTUATORS

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

Application

Description

Technical information

Function, Technical data, Produktbeziehungen

Variants

Electrical connection

Downloads

product information

Product data sheet Type Open/Close actuators

TROX Services

TECHNICALLY NECESSARY

STATISTICS AND WEBSITE ANALYSIS

CONVENIENCE AND PERSONALISATION

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