Neptronic L-T-RActuator Series
L-T-R Actuator Series
Perfect balance between strength
and responsiveness
Where are L-T-R actuators used in commercial HVAC systems?
The Neptronic L-T-R Actuator Series delivers dependable, high-torque performance for large dampers, valves, and air-handling systems. Built for large dampers, air-handling units, and valve control applications, these actuators combine robust mechanical strength with precise control and long-term reliability.
Each actuator is the result of Neptronic’s decades of expertise in intelligent HVAC control. The L-T-R Series provides the perfect balance between strength and responsiveness, ensuring smooth operation even in the most demanding environments.
What makes Neptronic L-T-R actuators reliable and flexible?
High-Torque Performance
With torque ranges up to 40 Nm, the series is equipped to handlelarge-scale dampers and valves without compromise.
Smooth Integration into Building Automation
Compatible with On/Off, Floating, 2–10 VDC, 4–20 mA or multi-signal controls, making retrofits and new builds simpler and faster.
Reduced Life-Cycle Cost
Detects foam and drains only as needed, conserving water andenergy.
Technical Highlights
| Feature | Specification |
| Torque Range | Up to ~40 Nm (≈360 in.lb) |
| Control Signals | On/Off, Floating, 2–10 VDC, 4–20 mA |
| Power Supply | 24 Vac/30 Vdc and 120/240 Vac options |
| Rotation | 0-90° standard, adjustable stroke option |
| Manual Override | Built-in clutch for manual operation |
| Fail-Safe Option | Available on select models |
Frequently Asked Questions
What is the Neptronic L-T-R actuator series?
The Neptronic L-T-R actuator series is a line of high-torque HVAC actuators designed for large dampers, valves, air-handling units, and demanding commercial building automation applications.
Where are L-T-R actuators used?
L-T-R actuators are used in large HVAC dampers, air-handling systems, valve control applications, and mechanical systems that require higher torque and reliable positioning.
What torque range is available for L-T-R actuators?
The L-T-R actuator series offers torque ratings up to approximately 40 Nm, or 360 in-lb., making it suitable for larger damper and valve applications.
What control signals do L-T-R actuators support?
L-T-R actuators support common HVAC control signals, including On/Off, floating, 2–10 VDC, 4–20 mA, and multi-signal control options.
Do L-T-R actuators include manual override?
Yes. L-T-R actuators include a built-in clutch for manual override, allowing the actuator position to be adjusted during installation, commissioning, or service.
Are fail-safe options available for L-T-R actuators?
Yes. Fail-safe operation is available on select L-T-R actuator models, allowing the actuator to move to a defined safe position when required by the HVAC control sequence.
Contact
Head Office
National Environmental Products Ltd.
Neptronic
400 Boulevard Lebeau
Montréal (Québec) H4N 1R6 Canada
E-mail: contact@neptronic.com
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