SQM53.460R1 Siemens Damper Motor

Overview

The Siemens SQM53.460R1 is a high-precision reversing actuator designed for the accurate positioning of dampers, butterfly valves, and flow control valves. As a base model in the SQM5 series, this unit provides a robust 200 in-lbs of torque and is engineered for applications requiring exceptional modulating accuracy and repeatability. Its modular design allows for significant customization through exchangeable circuit boards and internal auxiliary switches, making it a versatile component in industrial and commercial burner systems.

Features

• High-performance synchronous motor with a 25-second running time for 90-degree rotation
• Integrated auto/manual selector switch and manual forward/reverse toggle switch for simplified commissioning and adjustment
• Supports up to six internal, easily accessible SPDT auxiliary switches for flexible control logic
• Disengagement clutches for both the drive shaft and cam drum to facilitate manual positioning
• Durable die-cast aluminum housing with impact-proof, heat-resistant plastic covers
• Low-hysteresis gear train designed for a maintenance-free lifecycle of approximately 250,000 burner cycles

Specifications

• Model: SQM53.460R1
• Torque: 200 in-lbs (22.5 Nm)
• Running Time: 25 seconds at 60 Hz (30 seconds at 50 Hz) for 90-degree rotation
• Operating Voltage: 110-120 VAC (50/60 Hz)
• Angular Rotation: Up to 160 degrees (adjustable)
• Shaft Type: Base model supplied without a drive shaft (must be ordered separately)
• Direction of Rotation: Reversible (standard counter-clockwise rotation when facing the drive shaft)
• Protection Rating: NEMA 1, 2, 3, 3R, 4, 12 and 13 (IP54)
• Temperature Range: -4 F to 140 F (-20 C to 60 C)
• Agency Approvals: UL recognized, CSA certified, CE approved

Applications

• Positioning of air and gas dampers in industrial burner systems
• Control of butterfly valves and flow control valves for air-fuel ratio regulation
• Modulating control for process heating and large-scale HVAC boiler systems
• Integration into burner management systems (BMS) for precise electronic linearization and split-range control
• Ideal for high-demand environments requiring reliable, long-term operation in commercial and industrial combustion processes