SQM50.484R1Z3R Siemens Damper Motor

Overview

The Siemens SQM50.484R1Z3R is a high-precision reversing actuator designed for the accurate positioning of air and gas dampers, flow control valves, and butterfly valves in industrial burner applications. Engineered for reliability and flexibility, this electromotive damper motor features a reversible synchronous motor and a modular design that allows for field-exchangeable circuit boards and shafts. The “R” suffix specifically denotes clockwise (CW) rotation, ensuring it meets the specific mechanical requirements of diverse combustion systems.

Features

• Reversible synchronous motor provides consistent speed and high modulating accuracy
• Modular design supports various field-exchangeable circuit boards for input/output signal flexibility
• Equipped with two limit switches and up to four internal auxiliary switches for precise control
• Features a disengageable drive shaft and camshaft for easy manual adjustment and setup
• Durable die-cast aluminum housing with impact-proof and heat-resistant plastic covers
• Includes an externally visible position indicator for real-time monitoring of the shaft angle
• Suitable for mounting in any position to accommodate tight or complex installation spaces

Specifications

• Model: SQM50.484R1Z3R
• Torque: 140 lb-in (16 Nm)
• Operating Voltage: 110V – 120V AC (50/60 Hz)
• Running Time: 25 seconds for a 90-degree stroke (at 60 Hz)
• Rotation: Clockwise (CW)
• Shaft Type: 3/8 inch square dual-ended shaft
• Control Inputs: Supports 4-20 mA, 0-135 Ohm, 0-10 VDC, and floating control
• Protection Rating: Designed for industrial environments with robust aluminum housing
• Weight: Approximately 9.0 lbs (4.1 kg)

Applications

• Positioning of air and gas dampers in industrial and commercial burner systems
• Precise control of butterfly valves for fuel and air ratio regulation
• Modulation of flow control valves in HVAC and boiler applications
• Suitable for use with advanced burner controls like the Siemens LMV series
• Ideal for high-demand applications requiring repeatable accuracy and low hysteresis