Siemens Combustion SQM56.680R1Z3 Actuator

The Siemens Combustion SQM56.680R1Z3 Actuator is a high-torque, precision-engineered industrial motor designed for the rigorous demands of flow control and burner modulation. Operating on a 120V AC power supply, this reversing actuator delivers a robust 350 lb-in torque (40 Nm) with a 50-second running time for a full 90-degree rotational travel. Engineered as a motor-only assembly (8SwitchNoShaft), it requires a separate AGA58 series drive shaft to interface with butterfly valves or dampers. This specific model features an 8-switch configuration, including two limit switches and six auxiliary switches, providing complex feedback loops necessary for high-accuracy combustion control systems. The integrated AGA56 circuit board supports multiple control signals, making it a versatile choice for contractors managing industrial burner modulation and air-to-fuel ratio control. Its flexible mounting capability ensures it can be integrated into existing HVACR burner assemblies with minimal downtime.

• Precision Modulation: High rotational resolution ensures exact air and gas damper positioning for optimal combustion efficiency.
• Enhanced Feedback: The 8-switch assembly allows for advanced sequencing, including separate positions for ignition and low-fire stages.
• Industrial Durability: Rated for 350 lb-in torque, providing reliable rotary motion control in high-static pressure applications.
• Configurable Control: Compatible with 4-20mA, 0-10 VDC, and floating control signals via exchangeable terminal boards.
• Field Flexibility: Features a manual/auto selector switch and internal disengagement clutches for easier setup and troubleshooting.

Does the SQM56.680R1Z3 include the drive shaft?
No, this version is a "No Shaft" model. A compatible Siemens AGA58 series shaft (e.g., AGA58.1 or AGA58.4) must be sourced separately based on your specific valve or damper torque requirements.

What is the difference between the 'R' and 'L' model suffixes?
The 'R' in SQM56.680R1Z3 indicates it is factory-configured for clockwise (CW) rotation when facing the gear end, though the unit remains field-reversible.

Can I use this actuator with a 4-20mA input signal?
Yes, when equipped with the standard electronic circuit board (like the AGA56.41 series), it accurately processes 4-20mA analog signals for proportional control.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.