Item No. 1901-5121-2102-000
EAN 4 251325 615646

RYMASKON® stands for a series of multifunctional room control units. The individually configurable RYMASKON® 400 - Modbus enables automated monitoring and control of the indoor climate and illumination in a Modbus network. It has two digital inputs and two digital/analogue outputs. Room climate control and regulation can be accessed from a central point on a higher-level Modbus master and on-site operation can be selectively or completely disabled. Thanks to its internal outputs, the inputs and settings on the device do not necessarily have to be processed by the master. This means that it is also possible to have decentralised individual room control at any time. An internal sensor detects the room temperature.

Six freely assignable function buttons on the front panel of the unit can be used for on-site operation and configuration. An integrated rotary encoder with a central input button enables manual adjustment of settings and parameter assignment on location. Desired functions (such as "Light ON") and display values can be activated by triggering an approximation sensor when entering the room.

The dimmable multifunctional display is designed specifically for room operation and uses intuitive symbols for a clear view of all available spatial data. Besides the time, weekday and climate parameters (temperature, humidity, dew point, CO2 content), it can also display additional features, such as heating/cooling and fan modes, window open, lighting, alarm, key lock or room occupancy.

466,38 € net
Voltage supply 24 V DC (± 10 %)
Power consumption 1.08 W at 100 % backlighting
0.94 W at 15 % backlighting
0.89 W without backlighting
(without load at the actuator outputs)
Inputs 2 digital inputs
without additional 0 V output signal
Output 2 analogue outputs (0-10 V DC)
rated current max. 4 mA
Bus interface RS485 Modbus RTU Slave (57600, 38400, 19200, 9600 Baud),
bus termination can be set via DIP switch
Operating elements multifunctional display, 6 touch buttons, 1 rotary encoder,
1 approximation sensor (IR)
Sensor NTC 10 kΩ, 0...+70 °C, precision ±0.4 K
Ambient temperature +5...+40 °C (operation); –10...+50 °C (storage)
Electrical connection 0.14 - 1.5 mm², via plug-in screw terminal
Housing plastic, glass front panel, white colour
Dimensions 88 x 173 x 30 mm (incl. connection terminals)
Installation using a plastic mounting plate
wall mounting or on in-wall flush double switch box
Humidity 0...85 % r. H. (without dew formation)
Protection type IP 20 (according to EN 60 529)
Standards CE conformity,
electromagnetic compatibility according to EN 61326,
according to EMC Directive 2014/ 30/ EU
Type Item No. Price
KA2-Modbus 1906-1200-0000-100 185,00 €