Danfoss Thermot Data sheet
Data Sheet
Thermot
Thermal Actuator
Application |
The thermal actuator is a small actuator for electrical |
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on/off controls and PWM to activate several types |
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of valves and floor heating manifolds. |
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The actuator is equipped with a visual position |
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indicator to show the open or closed position of |
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the valve. |
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The product range covers actuators for 24 V (SELV) |
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or 230 V supply in both normally closed (NC) or |
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normally open (NO) versions (valve positions with |
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no supply voltage to the actuator). |
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The actuator can be connected to valves with |
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Heimeier/MNG/Oventrop M30×1,5 connection. |
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Other valves must be verified individually to ensure |
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correct valve closing measurement and valve top |
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geometry. |
Ordering |
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Actuator |
Connection type |
Supply voltage |
Function |
Code no. |
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Thermot |
M30 × 1,5* |
24 V AC/DC |
NC |
088H3216 |
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Thermot |
M30 × 1,5* |
24 V AC/DC |
NO |
088H3218 |
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Thermot |
M30 × 1,5* |
230 V AC |
NC |
088H3220 |
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Thermot |
M30 × 1,5* |
230 V AC |
NO |
088H3222 |
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*Connection to Heimeier, MNG and Oventrop valves with M30×1,5 connection. Other valves must be verified individually to ensure correct valve closing measurement and valve top geometry (see “Dimensions” on page 2).
Technical Specifications |
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Supply voltage |
24 V (Class II (SELV**)) and 230 V (3 A pre-fuse) |
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Max. inrush current |
24 V: 350 mA; 230 V: 250 mA |
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Frequency |
50-60 Hz |
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Running power consumption |
2 W |
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Spindle travel time |
~3 min. |
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Ambient temperature |
0 °C to 60 °C |
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Stroke |
2,4 mm (minimum after 5 years) |
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Actuating force |
NC: 100 N, |
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NO: 140 N |
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Closing measurement |
11,8 ± 0,3 mm |
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Approval |
CE |
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Enclosure |
IP 41 |
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Cable length |
950 mm |
** SELV: Safety Extra Low Voltage
If the actuator should be a 24 V or 230 V and normally open (NO) or normally closed (NC) depends mainly on the application, control strategy and the controller connected to the actuator.
© Danfoss | FEC | 2020.07 |
AI179686462452en-000501 | 1 |
Electrical Connection
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A |
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B |
Mounting |
All NC versions are equipped with a red mount- |
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ing split on the position indicator to secure easy |
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valve connection. When mounted this split must |
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be removed for correct operation. |
A:Blue
B:Brown
*24 V Class III transformer (SELV)
**230 V max. 3 A pre-fuse
Hand tighten only! Remove split (NC only)
Dimensions |
44 |
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38 |
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Mounting positions
20 mm 11,8 ± 0,3 mm 
2 | © Danfoss | FEC | 2020.07 |
AI179686462452en-000501 |
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