Overview
The Siemens SQM41.164R11SC is a precision electromotoric actuator designed for the accurate positioning of dampers and flow control valves in combustion systems. Engineered for high reliability, this clockwise-rotating actuator is typically used to regulate the flow of gas, oil, or combustion air in industrial and commercial burner applications. Its robust design features a synchronous motor and a NEMA 4 rated enclosure, making it suitable for demanding environments that require precise rotary motion.
Features
- Synchronous motor provides stall-proof operation and consistent timing
- Clockwise direction of rotation (CW) for specific valve and damper configurations
- Integrated drive shaft disengagement clutch allows for quick manual alignment
- NEMA 4 weatherproof enclosure protects internal components from harsh conditions
- Adjustable limit and auxiliary switches for flexible control and feedback
- UL and CSA approved for use in North American power systems with flexible conduit connections
Specifications
- Model: SQM41.164R11SC
- Operating Voltage: AC 110 V (50/60 Hz)
- Torque: 45 in-lb (5 Nm)
- Running Time: 15 seconds for a 90-degree turn
- Shaft Type: 3/8-inch Square Shaft
- Control Type: Line 3P-Step (3-position/floating)
- Rotation: Clockwise (CW)
- Approvals: UL Listed and CSA Certified
Applications
- Positioning of air and gas dampers in burner systems
- Control of butterfly valves for fuel flow regulation
- Regulation of oil pressure controllers in liquid fuel burners
- Integration with industrial and commercial burners of medium to high capacity
- Use in thermal process plants requiring reliable rotary actuation



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