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.

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.

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.

Designed with installers in mind, these actuators feature universalmounting options and clearly marked wiring terminals for quicksetup.

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.

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.

Every actuator is CE-certified and built to meet standards for safety,energy efficiency, and operational performance.
| 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 |
Head Office
National Environmental Products Ltd.
Neptronic
400 Boulevard Lebeau
Montréal (Québec) H4N 1R6 Canada
E-mail: contact@neptronic.com
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