Siemens RDE Series Programmable Digital Room Thermostat
Siemens RDE Series Programmable Digital Room Thermostat
The models in the Siemens RDE series are room thermostats with a digital display and precise temperature control. The RDE100 is a programmable model powered at 230 V; the RDE100.1 is battery-powered and offers a weekly program; the RDE50.1RF/SET is a wireless set with a 7-day program.
The thermostats use a relay output to control a combi boiler, zone valve or thermal actuator; compatible products are listed below.
Models and order codes
| Model | Power supply | Control | Output | Installation | Setting range | Order code |
|---|---|---|---|---|---|---|
| RDE100 | AC 230 V | On/Off | SPDT relay | — | 5…35 °C | S55770-T278 |
| RDE100.1 | DC 3 V (battery) | 2-position | — | — | 5…35 °C | S55770-T279 |
| RDE50.1RF/SET | DC 3 V (battery) | 2-position | — | Wall / table stand | — | S55770-T499 |
Compatible products
- Siemens STA Thermal (Thermoelectric) Valve Actuator — STA321.40L10, STA321.65L10
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:
- A6V10399978 — Data sheet (English)
- A6V10399577 — Data sheet (English)
- A6V10402282 — Datasheet (English)
- A6V13156971 — Data sheet (English)
- A6V13156963 — Mounting instructions (German)
- A6V10403583 — EU declaration of conformity (German)
For the right model selection and wholesale or project pricing, contact the Novus Energy engineering team on our WhatsApp line.