DRA plus C-load actuators

DRA plus switching actuator 4-gang 16A C load with current detection
The DRA 4-gang and 8-gang switching actuators are equipped with 16 ampere relays. These are flip-flop relays, which fulfil the stringent requirements for operational safety. The actuators do not require additional 230V auxiliary voltage; a configurable preferred position of the relays can be set for cases where the bus voltage fails. The C-load actuators are especially suitable for switching capacitive loads, e.g. lights with electronic ballasts. The integrated current measurement of the switching actuators provides information on, for example, a load failure or exceeding of the limit value. A teach-in function is available for the limit values, with which a new limit value can be taught in without reprogramming if the load is changed.

Additional product details

  • Independent switching of the 4 or 8 outputs
  • Manual actuation of the relay independent of the bus/switching position display
  • NO contact or NC contact operation
  • Central switching function
  • Group feedback for reduction of bus load
  • Active or passive (object can be read out) cyclical feedback function
  • Feedback can be delayed until after the return of bus voltage
  • Logical linking function for each output
  • Block function can be parameterised for each channel (alternative: forced setting function for each output)
  • Time functions (switch-on delay, switch-off delay, staircase light function - also with advance warning function)
  • Inclusion in light scenes possible, maximum of 8 internal scenes can be parameterised per channel
  • Memory function for light scenes
  • Elapsed-hours meter as forward/backward counter with limit function (limit can be changed via bus) can be activated for each output
  • Input monitoring for cyclical updating with safety setting
  • Reactions in case of bus voltage failure and restoration can be set for each channel following an ETS programming process
  • Current detection: measurement of load current for each channel
  • Threshold values for load monitoring (e.g. signalling of load failure)