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CC1N7817en
15.02.2024
Actuator SQM40 /SQM41
Actuators for air and gas
dampers
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
Variants with UL and CSA approval, as well as GL marine approval
The SQM40/SQM41 and this Data Sheet are intended for use by OEMs which
integrate the actuators in their products!
The SQM40/SQM41 actuators are suited for driving oil pressure controller, butterfly
valves, dampers or for use on other applications that require rotary motion.
Areas of application are oil and gas burners of medium to higher 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
7
817
SQM40...
SQM41...
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Table of Contents
Related Manuals for Siemens SQM41.245A21
Summarization of Contents
Actuators for Air and Gas Dampers
Product Overview and Applications
Introduces the SQM40/SQM41 actuators, their features, and typical use cases in heating and combustion systems.
Safety and Handling Precautions
General Warning Notes
Essential safety warnings regarding electrical shock, proper handling, and qualified personnel for actuator installation and maintenance.
Installation and Setup Guidelines
Mounting, Electrical, and Cam Settings
Covers mounting requirements, electrical connections, and adjusting cam settings for actuator operation.
Standards, Certifications, and Lifecycle
Compliance and Product Longevity
Details applied directives, standards, product lifetime, and disposal guidelines.
Mechanical Design and Components
Actuator Construction and Shafts
Describes the housing, motor, coupling, shaft types, and electrical connection terminals.
Technical Data Overview
General Unit Specifications
Covers operating voltage, frequency, power, angle, protection, and motor details for the actuators.
Technical Data: Inputs and North America
Analog Inputs and North American Wiring
Details analog input specifications (voltage, current) and wiring requirements for North American installations.
Technical Data: Environmental and Potentiometer
Environmental Conditions and Potentiometer Specs
Outlines environmental conditions and specifications for the conductive plastic potentiometer.
Technical Data: Potentiometer Diagram
Potentiometer Connection Diagram
Illustrates the electrical connection diagram for the conductive plastic potentiometer.
Position Indication and Cam Adjustment
Actuator Position Scales and Cam Settings
Explains how to read position indication scales and set the cam disk positions for actuator operation.
Connection Diagrams and Terminal Configurations
SQM4x Series Wiring Types
Details connection diagrams, terminal assignments, and cam/modulation settings for different SQM4x electronic versions.
Actuator Dimensions
SQM40/SQM41 Mechanical Drawings
Provides detailed dimensional drawings of the actuators and various shaft types with their specifications.
Available Accessories
Control Elements, Valves, and Mounting Plates
Lists accessories like proportional controlling elements, butterfly valves, and mounting plates for actuator integration.
Accessories: Potentiometers
Retrofitting Potentiometers for SQM40/SQM41
Describes potentiometers available for retrofitting, including specifications and compatibility notes.
Mounting on VKP Proportional Controlling Element
Step-by-Step Assembly Instructions
Provides a detailed guide with steps for mounting SQM40.xx5xxx onto the VKP proportional controlling element.
Mounting on VKF1x Butterfly Valve
Valve Compatibility and Mounting Procedure
Details the process and specifications for mounting SQM40.xx5xxx onto VKF1x butterfly valves.
Installing ASZ22.3x Potentiometers
Potentiometer Retrofit and Connection
Guides the installation of ASZ22.3x potentiometers onto SQM40/SQM41, including selection and engagement steps.
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