The SQN3... / SQN4... actuators are designed for driving gas or air dampers of oil or gas burners of small to medium capacity, or for load-dependent control of the fuel or 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... or LFL...
• In connection with 1- or 2-wire control or 3-position controllers

TECHRITE-SIEMENS-SIEMENS-SQN3-SQN4-ACTUATOR-ACTUATOR-013060325318.PDF [PDF]

DATASHEET [PDF]