Description
Siemens SQM56.680R1Z3 Combustion Actuator Overview
The Siemens SQM56.680R1Z3 is a heavy-duty combustion actuator engineered for precise fuel and air ratio control in commercial and industrial burner applications. Designed to deliver reliable, repeatable positioning performance, this actuator is a trusted solution for demanding combustion management systems.
Key Specifications
- Supply Voltage: 120V
- Stroke Time: 50 seconds
- Torque Output: 350 in-lb
- Auxiliary Switches: 8 built-in auxiliary switches for multi-point position feedback and interlocking
- Shaft: No shaft included (shaft-less configuration)
- Series: SQM56
- Brand: Siemens Combustion Controls
Features & Benefits
- High torque output of 350 in-lb ensures positive control of dampers, valves, and butterfly valves in combustion air and fuel systems
- 50-second stroke time provides smooth, controlled positioning to optimize combustion efficiency
- 8 auxiliary switches allow for precise multi-point setpoint control, safety interlocking, and position indication
- 120V power supply for straightforward integration into standard commercial and industrial control panels
- Shaft-less design offers flexibility for custom coupling and linkage configurations on-site
- Built to Siemens’ rigorous quality standards for long service life in harsh combustion environments
Typical Applications
- Commercial and industrial burner fuel/air ratio control
- Combustion air damper positioning
- Gas and oil valve actuation in boiler and furnace systems
- Multi-point positioning in modulating burner control systems
Why Choose the Siemens SQM56.680R1Z3?
As part of the Siemens SQM56 actuator family, the SQM56.680R1Z3 delivers the torque, speed, and switching flexibility required for complex combustion control sequences. The 8-switch configuration makes it ideal for applications requiring multiple feedback points or safety interlocks, while the robust 350 in-lb torque rating ensures reliable operation even under demanding load conditions.
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