Technical Specifications:​

Power Supply:​ 24 VAC or 24 VDC

Control Signal:​ 0 VDC to 10 VDC or 2 VDC to 10 VDC, selector configurable

Rated Torque:​ 15 Nm, 135 in-lb

Running Time:​ 25 seconds for 90° rotation at 0 VDC to 10 VDC

Position Feedback:​ 2 VDC to 10 VDC proportional feedback

End Switches:​ Built-in SPDT switches for full-open and full-closed indication

Manual Override:​ Local handwheel with automatic or manual switchover

Operating Temperature:​ -15°C to 55°C

Linearity:​ ±2% of full stroke

Insulation Resistance:​ 100 MΩ at 500 VDC

Ingress Protection:​ IP54

Damper Area Capability:​ Suitable for large dampers up to approximately 15 sq ft face area according to mounting and lever arrangement

Functional Features:​

Floating and Proportional Control:​ Maintains intermediate damper positions according to analog input

Indication:​ SPDT end switches and analog feedback for BMS supervision

Override:​ Manual handwheel for maintenance and power-loss positioning

Calibration:​ DIP or internal selector for signal range and direction

Application Scenarios:​ Commercial HVAC air handlers, building automation systems, industrial ventilation, cleanroom pressure control, cooling/heating mixing dampers and process air volume regulation.

Performance Parameters:​

Torque Output:​ 15 Nm throughout 0° to 90° travel

Stroke Accuracy:​ ±2% linearity under rated load and supply

Feedback Accuracy:​ Proportional 2 VDC to 10 VDC across full travel

Material Composition:​

Housing:​ Die-cast aluminum

Output Shaft:​ Stainless steel

Gear Train:​ Nylon gears

Seals:​ EPDM sealing components

Cable Gland and Bracket:​ Industrial plastic and coated steel

Structural Features:​ Cylindrical actuator body, quarter-turn output shaft, DIN-rail or direct damper bracket mounting, 3-wire control cable for common, signal and feedback, integrated end-switch compartment.

Working Principle:​ The control signal drives a reversible motor through a gear train to rotate the output shaft. Limit switches disconnect motor power at fully open or fully closed positions. Position feedback potentiometer or transducer produces a proportional signal. In manual mode, the handwheel mechanically moves the shaft and automatic mode resumes when selected.

Installation Requirements:​ Mount the actuator perpendicular to the damper shaft with a secure coupling. Use 18 AWG shielded cable for control and feedback signals. Select 0 VDC to 10 VDC or 2 VDC to 10 VDC via the internal selector before energizing. Provide weather protection if installed in exposed outdoor air units, while respecting IP54 limits.

Usage Notes:​ Do not supply above 24 VAC or 24 VDC. Verify end-switch wiring against the BMS input type. Check shaft coupling tightness after commissioning. Lubricate gear components annually in dusty or outdoor environments.