SQM50.461R1Z3 Siemens Damper Motor

Overview

The Siemens SQM50.461R1Z3 is a high-performance reversing actuator designed for the precise positioning of air dampers, fuel valves, and other rotary components in industrial burner systems. Part of the robust SQM5 series, this actuator is engineered for modulating control, offering high repeatability and accuracy for air-to-fuel ratio management. Its durable construction and versatile mounting options make it a reliable choice for medium to large capacity oil and gas burners.

Features

• High-torque performance suitable for heavy-duty modulating applications
• Integrated auto/manual selector switch for easy adjustment and maintenance
• Externally visible position indicator for clear status monitoring
• Low-hysteresis gear train combined with a high-resolution potentiometer for precise control
• Field-reversible rotation direction (factory set to counterclockwise)
• Disengagement clutches for the drive shaft and cam drum to facilitate manual adjustment
• Multiple internal auxiliary switches (up to 8) for sequence control and position feedback

Specifications

• Torque: 140 in-lb (15 Nm)
• Running Time: 25 seconds for 90 degree rotation (at 60 Hz)
• Operating Voltage: 110-120 VAC, 50/60 Hz
• Input Signals: Multi-input (4-20 mA, 0-135 Ohm, 0-10 VDC, 0-20 mA)
• Feedback: 1000 Ohm potentiometer, 90 degree
• Shaft Type: 10 mm round, single-ended
• Protection Rating: NEMA 1, 2, 3, 3R, 3S, 5, 12, 13 (IP54)
• Temperature Range: -15 C to +60 C (5 F to 140 F)

Applications

• Load-dependent control of gas flow, oil volume, and combustion air volume
• Positioning of flow control valves and butterfly valves in HVAC and boiler systems
• Modulating air/fuel ratio control for industrial and commercial burners
• Used in conjunction with 3-position or modulating controllers and burner control systems