Actuator TWA Thermal Wax DANFOSS TWA-A 230V NC
Data Sheet
TWA Thermal Wax Actuator
Application
The TWA range covers actuators for 24 V (SELV) or
230 V supply in both normally closed (NC) or normally open (NO) versions (valve positions with no
supply voltage to the actuator).
NC/S versions with end switch are also available for
some actuator types.
The actuator is equipped with a visual position indicator to show the open or closed position of the
valve.
The TWA is a small actuator for electrical on/off
controls to activate several types of valves and floor
heating manifolds.
Ordering
Actuator
The TWA can be connected to the RA, RTD, RAVL
and RAV-valves from Danfoss. Furthermore versions for valves with Heimeier/MNG/Oventrop
M30×1,5 connection are available.
Other valves must be verified individually to ensure
correct valve closing measurement and valve top
geometry.
Connection type
Supply Voltage
Function
Code no.
TWA-A
RA
230 V AC
NC/S*
088H3106
TWA-A
RA
24 V AC/DC
NC
088H3110
TWA-A
RA
24 V AC/DC
NO
088H3
111
TWA-A
RA
230 V AC
NC
088H3112
TWA-A
RA
230 V AC
NO
088H3113
TWA-A
RA
24 V AC/DC
NC/S*
088H3114
TWA-V
RAV/VMT
24 V AC/DC
NC
088H3120
TWA-V
RAV/VMT
24 V AC/DC
NO
088H3121
TWA-V
RAV/VMT
230 V AC
NC
088H3122
TWA-V
RAV/VMT
230 V AC
NO
088H3123
TWA-L
RAVL
24 V AC/DC
NC
088H3130
TWA-L
RAVL
24 V AC/DC
NO
088H3131
TWA-L
RAVL
230 V AC
NC
088H3132
TWA-L
RAVL
230 V AC
NO
088H3133
TWA-K
M30x1,5**
230 V AC
NC/S*
088H3105
TWA-K
M30x1,5**
24 V AC/DC
NC
088H3140
TWA-K
M30x1,5**
24 V AC/DC
NO
088H3141
TWA-K
M30x1,5**
230 V AC
NC
088H3142
TWA-K
M30x1,5**
230 V AC
NO
088H3143
TWA-D
RTD
24 V AC/DC
NC
088H3150
TWA-D
RTD
24 V AC/DC
NO
088H3151
TWA-D
RTD
230 V AC
NC
088H3152
TWA-D
RTD
230 V AC
NO
088H3153
* With end-switch (end-switch only 24 V~)
** Connection to Heimeier, MNG and Oventrop valves with M30×1,5 connection. Other valves must be verified individually
to ensure correct valve closing measuremen
t and valve top geometry (see page 3).
AI187386475671en-001001 / VDSBY102
© Danfoss | FEC | 2019.07 | 1
Data Sheet
Technical specifications
TWA Thermal Wax Actuator
Supply voltage
24 V (Class II (SELV)) and 230 V (3 A pre-fuse)
Max. inrush current
24 V: 350 mA, 230 V: 250 mA
Frequency
50-60 Hz
Running power consumption
2W
Spindle travel time
~3 min.
Ambient temperature
0 °C to +60 °C
Enclosure
IP 41
Cable length
950 mm
Combination overview for Danfoss thermal wax actuator and valves (V) or manifolds (M)
Valve/
Manifold
RA-N
(V)
RTD-N
(V)
RA-C
(V)
RA-FN
(V)
RA-G
(V)
RTD-G RAV-/8 VMT-8 RAVL-6
(V)
(V)
(V)
(V)
FHD
(M)
0,65 to 0,65 to 1,20 to 0,65 to 2,06 to 2,00 to 1,20 to 1,50 to 0,20 to 0,10 to
1,40
1,40
3,30
1,40
4,75
4,40
3,10
3,10
1,50
1,10
kvs (m³/H)
Max. Δp (Bar)
0,6
Actuator**
0,6
0,6
0,6
0,2*
0,2*
0,8
0,8
0,6
0,6
TWA-A TWA-D TWA-A TWA-A TWA-A TWA-D TWA-V TWA-V TWA-L TWA-A
* The RA-G/ RTD-G 25 valve has a max. Δp = 0,16 bar. Consult
valve/manifold datasheets for further information.
** If the actuator should be an 24 V or 230 V and normally open (NO) or normally closed (NC), depends mainly of the application, control strategy and the controller connected to the actuator.
Electrical connections
24 V *
230 V~ **
Blue
Brown
50-60 Hz
24 V *
230 V~ **
50-60 Hz
24 V~ / 2 A*
Green
Green
* 24 V Class II transformer (SELV)
** 230 V max. 3 A pre-fuse
Note! All NC-versions are equipped with a red mounting split on the position indicator to secure easy valve
connection. When mounted this split must be removed for correct operation.
2 | © Danfoss | FEC | 2019.07
AI187386475671en-001001 / VDSBY102
Data Sheet
Dimensions
TWA Thermal Wax Actuator
TWA-A / RA valves
H
DN
D
L
D
ISO 7/1
d2
Valve type
H
[mm]
L
[mm]
10
RP 3/8
R 3/8
RA-N, RA-FN
92
75
15
RP ½
R½
RA-N, RA-FN
92
82
20
RP ¾
R¾
RA-N, RA-FN
97
98
25
RP 1
RP ½
R1
RA-N, RA-FN
97
125
15
R½
RA-G
valve/manifold datasheets for further information.
** If the actuator should be an 24 V or 230 V and normally open (NO) or normally closed (NC), depends mainly of the application, control strategy and the controller connected to the actuator.
Electrical connections
24 V *
230 V~ **
Blue
Brown
50-60 Hz
24 V *
230 V~ **
50-60 Hz
24 V~ / 2 A*
Green
Green
* 24 V Class II transformer (SELV)
** 230 V max. 3 A pre-fuse
Note! All NC-versions are equipped with a red mounting split on the position indicator to secure easy valve
connection. When mounted this split must be removed for correct operation.
2 | © Danfoss | FEC | 2019.07
AI187386475671en-001001 / VDSBY102
Data Sheet
Dimensions
TWA Thermal Wax Actuator
TWA-A / RA valves
H
DN
D
L
D
ISO 7/1
d2
Valve type
H
[mm]
L
[mm]
10
RP 3/8
R 3/8
RA-N, RA-FN
92
75
15
RP ½
R½
RA-N, RA-FN
92
82
20
RP ¾
R¾
RA-N, RA-FN
97
98
25
RP 1
RP ½
R1
RA-N, RA-FN
97
125
15
R½
RA-G
... ascunde
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