Siemens Actuator Servomotor SQN9 Series

The SQN9… is a reversible electromotoric actuators are designed for driving gas or air dampers of oil or gas burners of small to medium capacity, for load-dependent control of the fuel and combustion air volume:

  • In connection with P-PI or PID controllers, such as the RWF40…
  • Directly via the different types of burner controls, such as LOA…, LMO…, LMG…, LFL..
  • In connection with 1- or 2-wire control or 3-position controllers
SQN90 Model SQN91 Model
A SeriesB SeriesA SeriesB Series
SQN90.201A2790SQN90.240B2793SQN91.570A2793SQN91.140B1799
SQN90.204A2799SQN90.240B2799SQN91.140B2799
SQN90.220A2799
SQN90.350A2799
SQN90.560A2793
SQN90.570A2793
* For other spare parts enquiries, please consult JATI