Siemens RAB11 / RAB31 Mechanical Fan Coil Thermostat
Siemens RAB11 / RAB31 Mechanical Fan Coil Thermostat
The Siemens RAB series are mechanical fan coil thermostats with relay output and a setpoint range of 8…30 °C. The RAB11 is for 2-pipe and the RAB31 for 4-pipe fan coil systems; the RAB31 offers heating/cooling selection and 3 fan speeds.
The thermostat directly controls the fan coil valve actuator and the fan motor.
Models and order codes
| Model | Power supply | Control | Output | Setting range | Order code |
|---|---|---|---|---|---|
| RAB11 | AC 230 V | — | Relay | 8…30 °C | S55770-T225 |
| RAB31 | AC 230 V | On/Off | Relay | 8…30 °C | S55770-T229 |
Technical specifications
| Specification | Value |
|---|---|
| Protection class (IP) | IP30 |
Compatible products
- Siemens VQP46 Externally Threaded On/Off Pressure-Independent Control Valve PN25 — VQP46.15F1.3, VQP46.20F1.5
This list is verified compatibility information based on Siemens product matching data; it is not a list of similar-product suggestions. You can make the final selection with our engineering team based on your project conditions (differential pressure, stroke, control signal).
Selection and installation notes
- The thermostat must be selected to match the voltage and output type of the device it controls (combi boiler, actuator, fan coil).
- For accurate sensor readings, the thermostat is mounted approximately 1.5 m above the floor, away from direct sunlight and heat sources.
Technical documents
You can find them on the manufacturer's website by searching for the Siemens document number:
- A6V10348357 — Data sheet (English)
- A6V10348363 — Data sheet (English)
- A6V10342736 — Data sheet (English)
- A6V10348229 — Mounting instructions (German)
- A6V10341646 — EU declaration of conformity (German)
- A6V10374504 — TÜV certificate (English)
For the right model selection and wholesale or project pricing, contact the Novus Energy engineering team on our WhatsApp line.