Neptronic D-B-SActuator Series
D-B-S Actuator Series
Engineered to perform wherever
your building demands it
What is the D-B-S actuator series designed for?
Meet the D-B-S Actuator Series from Neptronic, a robust line of quarter-turn actuators designed to deliver dependable performance for HVAC systems.
Whether for ventilation dampers, air-handling units, or valve control, the D-B-S family combines advanced engineering with a compact, installation-friendly design, helping building professionals achieve smarter automation and lasting performance.
Each actuator in the D-B-S Series is purpose-built to deliver the perfect balance of power, precision, and performance, ensuring optimal control for every damper size and airflow demand.
What makes the D-B-S actuator series suitable for HVAC applications?
Effortless Integration
The D-B-S actuators work seamlessly with all major building automation systems (BAS). Multiple control signal options, including On/Off, Floating, and Modulating (2–10 VDC or 4–20mA), allow for easy integration into both new and retrofit projects.
Energy-Efficient by Design
Engineered for optimal motor efficiency, D-B-S actuators helpreduce overall system energy use. Their smooth, balanced motionminimizes wear on dampers, extending both actuator andequipment lifespan.
Easy Installation and Commissioning
Designed with installers in mind, these actuators feature universalmounting options and clearly marked wiring terminals for quicksetup.
Simple Maintenance, Long Service Life
With a maintenance-free gear train and durable construction, D-B-S actuators operate reliably year after year. The manual override feature allows for quick adjustments during inspection or testing without dismantling the system.
Flexible Integration
Compatible with On/Off, Floating, and Modulating (2–10 VDC or 4–20 mA) control signals, the D-B-S Series integrates effortlessly into existing building automation and control systems, simplifying upgrades and system expansions.
Safety Compliance
Every actuator is CE-certified and built to meet standards for safety,energy efficiency, and operational performance.
Technical Highlights
| Feature | Specification |
| Torque Range | 4 Nm to 8 Nm |
| Rotation | 90° adjustable |
| Control Signals | On/Off, Floating, Modulating (2–10 VDC, 4–20 mA) |
| Power Supply | 24 VAC/DC |
| Fail-Safe Option | Available on select models |
| Temperature Range | −30 °C to +50 °C |
Frequently Asked Questions
What is the Neptronic D-B-S actuator series?
The Neptronic D-B-S actuator series is a line of compact quarter-turn HVAC actuators designed for reliable damper and valve control in commercial building automation systems.
What applications are D-B-S actuators used for?
D-B-S actuators are used for ventilation dampers, air-handling units, HVAC dampers, and valve control applications that require dependable quarter-turn actuation.
What control signals do D-B-S actuators support?
D-B-S actuators support On/Off, floating, and modulating control, including 2–10 VDC and 4–20 mA signal options for integration with HVAC control systems.
What torque range is available for D-B-S actuators?
The D-B-S actuator series offers a torque range from 4 Nm to 8 Nm, making it suitable for smaller to medium HVAC damper and valve applications.
Do D-B-S actuators offer fail-safe operation?
Yes. Fail-safe operation is available on select D-B-S actuator models, allowing the actuator to move to a defined safe position when required by the HVAC sequence.
Can D-B-S actuators integrate with a building automation system?
Yes. D-B-S actuators are designed to work with major building automation systems using common HVAC control signals such as On/Off, floating, 2–10 VDC, and 4–20 mA.
Contact
Head Office
National Environmental Products Ltd.
Neptronic
400 Boulevard Lebeau
Montréal (Québec) H4N 1R6 Canada
E-mail: contact@neptronic.com
Copyright © 2026 Neptronic. All rights reserved.
