Siemens Actuator Servomotor SQN9 Series

The SQN9… is a reversible electromotoric actuator 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 Series	B Series	A Series	B Series
SQN90.201A2790	SQN90.240B2793	SQN91.570A2793	SQN91.140B1799
SQN90.204A2799	SQN90.240B2799		SQN91.140B2799
SQN90.220A2799
SQN90.350A2799
SQN90.560A2793
SQN90.570A2793