SIEMENS RXC 21.5/00021 ROOM CONTROLLER
The Siemens RXC21.5/00021 is a precision-engineered room controller designed for temperature regulation in individual spaces. Optimized for fan-coil systems, chilled ceilings, and radiator applications, it ensures reliable performance and efficient climate control in commercial and industrial environments.
Manufacturer: Siemens
Type: Room Controller
Model: RXC 21.5/00021
ID No.: 070006453E00
Ref No.: 120507A 20014
Technical Information
- Input Voltage: 230 V AC
- Line Frequency: 50/60 Hz
- Output Voltage: AC 24 V ON/OFF, PDM or 3-position (+/“20%)
- No. of Triac Outputs: 4
- Factory-Loaded Application: 00021
- Triac Output Switching Voltage: 24 V
- Triac Output Switching Current: 0.5 A
- Mounting: DIN rail, screw fixing
- Mounting Location: Ceiling voids with cover, fan coil, panel
- Dimensions (W x H x D): 113 x 167 x 62 mm
- Degree of Protection: IP20












