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Room thermostat, heating/cooling, surface-mounted super flat, 230V AC, silent (Triac)


Room thermostat, heating/cooling, surface-mounted super flat, 230V AC, silent (Triac)

This controller was specially developed for heating/cooling control in 2-pipe pipe systems for hotels, residential and commercial premises and can control up to 5 valve actuators (normally closed). The KTRTB detects the room temperature with an internal sensor and activates the heating or cooling according to the deviation from the setpoint. The use of a triac as a switching element instead of a relay/bimetal means that there is no switching noise during operation. With an internal switch, the existing contact input can be configured as an ECO contact or standby contact. ECO function: If this function is selected, the temperature is reduced by 3K in heating mode and increased by 3K in cooling mode. Standby function: If this function is selected, the controller is switched off (frost protection is still active). Surface/wall mounting (4-hole mounting on the flush-mounted box).
  • Art.-Nr.: MA700300

    Technical data

    Actual temperature displayNo
    Additional heating switchNo
    Ambient temperature, lower value0 °C
    Ambient temperature, upper value40 °C
    AssemblyComplete device
    Bearing temperature, lower value-20 °C
    ColourPure white
    Control behaviourSwitching PWM
    Control range, lower value5 °C
    Control range, upper value30 °C
    Cooling control functionYes
    Degree of contamination2
    Depth13,9 mm
    DesignBerlin 1000
    ECO function (reduction)Yes
    ECO input (reduction)230 V AC, 50 Hz
    Electric connectionScrew terminals
    Electronic controlYes
    External settingYes
    Heating / cooling switchNo
    Heating control functionYes
    Height78,5 mm
    Housing materialPlastic ABS
    Maximum air humidity (non-condensing)95 % r.H
    Maximum power consumption< 0.8 W
    Maximum switching current65 mA
    Maximum switching voltage230 V AC, 50 Hz
    Mechanical range reductionYes
    MediumAir, not aggressive
    Minimum switching voltage230 V AC / 50 Hz
    Mounting / attachmentSurface mounting
    Number of control ranges1
    Number of outputs1
    Number of outputs, cooling1
    Number of outputs, heating1
    On / Off switchNo
    Operating voltage230 V AC / 50 Hz
    OperationRotary knob
    Output signalSwitching PWM, 230 V AC, 50 Hz
    Potential free switching contactNo
    Proportional rangeApprox. 1 K
    Protection classII, following appropriate mounting
    RAL colour number (similar)9010
    Safety and EMCIn accordance with DIN EN 60730
    ScaleDegree Celsius
    Sensor elementNTC internal
    Sensor externalNo
    Surface propertiesGloss
    Switch/lamp night-time reductionNo
    Switching contactNC contact
    Switching difference0 K, as controlled almost constantly
    Switching difference, can be adjustedNo
    Switching elementTriac
    Switching power15 W
    Temperature controller versionClimate controller
    Thermal feedbackNo
    Type of protectionIP30
    Width78 mm
    With explosion protectionNo
    Circuit diagram Circuit diagram




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