For actuation of thermoelectric valve drives for heating or cooling ceilings. The heating
actuator has 6 electronic outputs. Up to 4 valve drives can be connected to each output. The
outputs are either switch activated (1 bit) or PWM signal (1 byte) activated. Each output is
overload-protected and short-circuit-protected.
All outputs can be operated manually using push-button operation. Building site operation is
For installation on DIN rails TH35 according to EN 60715. The bus is connected using a bus
KNX software functions: Characteristics of valve drive (de-energised open/closed), PWM
cycle time per channel, valve protection function per channel, cyclical monitoring of the control
value per channel, operating hours counter, status indication per channel (nominal value,
short circuit, overload, valve protection active, service mode, manual operation active, priority
control active), summer and winter mode, locking each output in a forced position, behaviour
on bus voltage failure and recovery, mains failure signal, group feedback, transmission of the
largest 1 byte variable value.
Nominal voltage: AC 110-230 V, 50/60 Hz
Outputs: 6, electronic AC 24 V / 230 V
Nominal current: 0.05 ... 0.16 A, ohmic
Switch-on current: max. 1.5 A (2 s)
Minimum load per used output: 1 valve drive
Number of valve drives: max. 4 per output (230 V drives)
max. 2 per output (24 V drives)
Device width: 4 modules = approx. 72 mm
Accessories: Thermoelectric valve drive 230 V MTN639125
Thermoelectric valve drive 24 V MTN639126
Contents: With bus connecting terminal and cable cover.