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● Areas of application are oil and gas burners of medium to larger capacity,
as well as thermal process plants.
● The actuators are used primarily for load-dependent control of the flow
of gas, oil and combustion air:
In connection with modulating 3-position controllers or continuous
controllers (e.g.,4…20 mA) and/or…
... directly by burner controls
● Standards & Certifications:
● Electromotoric actuator up to 18 Nm torque
● Clockwise and counterclockwise variants
● Running times from 5 to 65 seconds
● Different shaft ends available
● Electronic version with analog control input
● Internal position indication
● Drive shaft can be disengaged
● Operating Voltage SQM4x.xxxA1 AC 120V -15%/+10% 50...60 Hz ±6%
SQM4x.xxxA2 AC 230V -15%/+10% 50...60 Hz ±6%
SQM4x.xxxR1 AC 120V -15%/+10% 50...60 Hz ±6%
● Operating angle Between 0° and max. 90° or between 0° and max. 135°, depending on the type
● Safety class I
● Degree of protection IP66
● Environmental conditions Operation DIN EN 60721-3-3
Climatic conditions Class 3K5
Mechanical conditions Class 3M4
Temperature range -20...60 °C
-15...+60 °C for 18 Nm design
Humidity <95% r.h.
● Weight Approx. 2 kg
● Lifetime 250,000 start cycles (close→open→close) under load with the rated torque in the entire rotation angle range.2,000,000 control cycles under load with 75% of rated torque in rotation angle range of 10°
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