RDAB20-24, RDAB20-230 and RDAB20-24A are damper actuators for control of dampers in ventiation systems.
| Mounting | Directly on the damper spindle |
| Damper spindle | 10…20 mm Ø (round spindle), 10…20 mm (square spindle) |
| Max. damper size | 4 m2 |
| Torque | 20 Nm |
| Aux. switch (RDAB20-24S and RDAB20-230S) | 1 mA … 3 (0.5) A, 250 V AC |
| Protection class | IP54 |
| Control signal | Supply voltage | Running time, actuator | Aux. switch | Type |
| On/off, 3-point | 24 V AC/DC, 4 VA | 150 s | – | RDAB20-24 |
| On/off, 3-point | 24 V AC/DC, 4 VA | 150 s | Yes | RDAB20-24S |
| On/off, 3-point | 230 V AC, 6 VA | 150 s | – | RDAB20-230 |
| On/off, 3-point | 230 V AC, 6 VA | 150 s | Yes | RDAB20-230S |
| 0…10 V DC (working range 2…10 V) | 24 V AC/DC, 4 VA | 150 s | – | RDAB20-24A |
| 0…10 V DC (working range 2…10 V) | 230 V AC, 6 VA | 150 s | – | RDAB20-230A |
