Increased reliability, better energy efficiency and numerous new functions: The new JUNG switch and blind actuators have a holistically improved concept. The actuators simplify installation and increase functional diversity while reducing energy consumption.

rail mounting device, 4 rail units

23066 REGHE

Intended use

  • Switching of electrical loads with floating contacts
  • Switching of electrically-driven blinds, shutters, awnings and similar hangings
  • Switching of electrothermal drives
  • Polling of conventional switching or push-button contacts, window contacts etc. in KNX systems, for reporting of states, meter levels, operation of loads, etc.
  • Polling of external temperature sensors for heating control
  • Logic functions to control building functions
  • Mounting on DIN rail according to EN¬†60715 in distribution boxes


Product characteristics

  • Actuator functions: switching, blinds, electrothermal drives
  • Actuator function can be switched in pairs
  • Integrated push-button interface with 6 inputs
  • 2 integrated room temperature controllers
  • 2¬†inputs for temperature sensors (ref.-no.¬†FF¬†7.8)
  • Outputs can be operated manually, construction site mode
  • Feedback in manual mode and in bus mode
  • Scene function
  • Disabling of individual outputs manually or via bus


Switching function

  • 6¬†switching outputs
  • Operation as NO or NC contacts
  • Logic operation and forcing function
  • Feedback function
  • Central switching function with collective feedback
  • Time functions: switch-on delay, switch-off delay, staircase lighting timer with pre-warning function


Blinds function

  • 3¬†blinds outputs
  • Suitable for 230¬†V¬†AC motors
  • Blind/shutter position directly controllable
  • Slat position directly controllable
  • Feedback of movement status, blind/shutter position and slat position
  • Forced position through higher-level controller
  • Safety function: rain alarm, frost alarm, 3 independent wind alarms
  • Sun protection function


Function of valve drives

  • 2¬†outputs for electrothermal drives
  • Switching operation or PWM operation
  • Actuators with characteristics “normally open” or “normally closed” can be controlled
  • Emergency operation in case of bus voltage failure for summer and winter
  • Protection against jamming valves
  • Forced position
  • Cyclical monitoring of the input signals can be parameterised


Heating controller

  • 2¬†internal controllers to control two independent rooms
  • Control for heating or cooling, optionally with additional level
  • On-off, PWM or PI control
  • Predefined heating types (hot water heating, fan coil unit …) or individual parameters possible



  • 6¬†inputs for push-buttons
  • Input functions: switching, dimming, blinds control, light scene extension unit, brightness or temperature value transmitter
  • 2¬†inputs for external temperature sensors


Logic functions

  • Up to 10¬†logic operations with up to 8¬†inputs each, e.g. for AND, OR and XOR operations
  • Conversion of data point types, e.g. from 1-bit to 8-bit
  • Comparative operations, e.g. <, >, ‚ȧ, ‚Č•
  • Arithmetic functions, e.g. +, ‚Äď, *, :

Technical data

KNX medium: TP 256
Rated voltage KNX: DC 21 … 32 V SELV
Current consumption KNX: 4 … 20 mA
Connection, KNX: terminal
Power loss: max. 6 W
Ambient temperature: ‚ąí5 … +45 ¬įC
Storage/transport temperature: ‚ąí25 … +70 ¬įC
Relay outputs
¬†¬†¬†¬†Contact type: floating relay contacts (őľ contact)
    Switch type: NO contact
    Switching voltage: AC 250 V ~
    Min. switching current AC: 100 mA
¬†¬†¬†¬†Switching current AC1 (cos Ōē > 0.8): 16 A
¬†¬†¬†¬†Switching current AC3 (cos Ōē < 0.8): 6 A
    Fluorescent lamps: 16 AX
¬†¬†¬†¬†Switch-on current 200 ¬Ķs: max. 800 A
    Switch-on current 20 ms: max. 165 A
¬†¬†¬†¬†Switching voltage DC: DC 12 … 24 V
    Switching current DC 24 V: 6 A
Connected load, 230 V
    Ohmic load: 3000 W
    Blind / Fan motors: 1380 VA
Lamp loads 230 V
    Incandescent lamps: 3000 W
    HV halogen lamps: 2500 W
    HV LED lamps: max. 400 W
    Electronic transformers: 1500 W
    Inductive transformers: 1200 VA
Fluorescent lamps T5/T8
    non-compensated: 1000 W
¬†¬†¬†¬†parallel compensated: 1160 W / 140 ¬ĶF
¬†¬†¬†¬†lead-lag circuit: 2300 W / 140 ¬ĶF
Compact fluorescent lamps
    non-compensated: 1000 W
¬†¬†¬†¬†parallel compensated: 1160 W / 140 ¬ĶF
Mercury vapour lamps
    non-compensated: 1000 W
¬†¬†¬†¬†parallel compensated: 1160 W / 140 ¬ĶF
Electrothermal valve drives
    Cycle time: min. 15 min
Connection, load
    Connection mode: screw terminals
¬†¬†¬†¬†single wire: 1 x 0.5 … 4 mm¬≤
¬†¬†¬†¬†stranded without ferrule: 1 x 0.5 … 4 mm¬≤
¬†¬†¬†¬†stranded with ferrule: 1 x 0.5 … 2.5 mm¬≤
    Rated voltage: DC 3.3 V SELV
    Signal duration: min. 100 ms
    NO contacts: max. 50
    NC contacts: max. 50
    Cable length: max. 30 m
Use shielded cables for cable lengths > 3 m.
Connection, inputs:
    Connection mode: screw terminals
¬†¬†¬†¬†single wire: 1 x 0.08 … 1.5 mm¬≤
¬†¬†¬†¬†stranded without ferrule: 1 x 0.08 … 1 mm¬≤
¬†¬†¬†¬†stranded with ferrule: 1 x 0.14 … 0.5 mm¬≤
Mounting width: 72 mm (4 rail units)

Product documentation


Product data sheet


Database ETS4 + ETS5


EC Declaration of Conformity


Operating instructions


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