Product Overview

The Standard Damper Actuator 8Nm/16Nm/24Nm (24) Modulating is specially designed for precise airflow control in HVAC applications. Unlike simple ON/OFF actuators, this model supports modulating signals (0–10VDC / 2–10VDC / 0–20mA / 4–20mA), allowing continuous adjustment of damper position for superior energy efficiency and indoor comfort.

Engineered for AC/DC 24V operation, the actuator offers torque ratings of 8Nm, 16Nm, and 24Nm, covering damper sizes up to 4.5m². Optional auxiliary switches provide additional monitoring and control flexibility, making this actuator ideal for building automation, smart ventilation, and energy-saving HVAC projects.

Key Features

● Available torque levels: 8Nm, 16Nm, 24Nm

● Modulating control inputs: 0–10VDC, 2–10VDC, 0–20mA, 4–20mA

● Feedback signal output for accurate position monitoring

● Power supply: AC/DC 24V, 50/60Hz

● Manual override with push-button latch and automatic reset

● Noise level ≤45dB for quiet operation

● Rotation angle: up to 95°

● Compact, IP44-protected design for reliable installation

● Compatible with building management and automation systems

Model Selection Guide

Torque	Running Time (90°)	Power Supply	Auxiliary Switch	Model/Type
8Nm	<55s	AC/DC 24V	None	HY-DF08-24
			2-SPDT	HY-DF08-24S
16Nm	<100s	AC/DC 24V	None	HY-DF16-24
			2-SPDT	HY-DF16-24S
24Nm	<160s	AC/DC 24V	None	HY-DF24-24
			2-SPDT	HY-DF24-24S

Technical Specifications

Specification	HY-DF08-24(S)	HY-DF16-24(S)	HY-DF24-24(S)
Nominal Voltage	AC/DC 24V, 50/60Hz	Same	Same
Voltage Range	AC/DC 19.2…28.8V	Same	Same
Power Consumption	4.5W (nominal), 0.5W (holding)	Same	Same
Control Input	0–10VDC / 2–10VDC / 0–20mA / 4–20mA	Same	Same
Feedback Output	0–10VDC / 2–10VDC / 0–20mA / 4–20mA	Same	Same
Torque	8Nm	16Nm	24Nm
Damper Size	1.5m²	3m²	4.5m²
Rotation Angle	Max 95°	Max 95°	Max 95°
Running Time (90°)	<55s	<100s	<160s
Manual Override	Push-button latch, self-resetting	Same	Same
Noise Level	45dB	45dB	45dB
Protection Class	Class III (insulated)	Same	Same
Ingress Protection	IP44	IP44	IP44
Operating Temp. Range	-20…+50°C	Same	Same
Storage Temp. Range	-30…+80°C	Same	Same
Humidity Resistance	95% RH, non-condensing	Same	Same
Shaft Diameter	Ø10–12mm / 10×10–16×16mm	Same	Same
Weight	<1.3kg	<1.3kg	<1.3kg

Applications

● Precision airflow management in HVAC ducts

● Air handling units (AHUs) and fan coil systems

● Smart buildings requiring modulating control

● Energy optimization projects in commercial facilities

● Industrial ventilation with variable airflow requirements

FAQ – Modulating Damper Actuators

Q1: What makes a modulating damper actuator different from an ON/OFF actuator?

Unlike ON/OFF types that only open or close, modulating actuators adjust damper position continuously based on control signals (0–10V or 4–20mA), allowing precise airflow regulation.

Q2: What signal types are supported by this actuator?

It supports 0–10V, 2–10V, 0–20mA, and 4–20mA control inputs, with corresponding feedback outputs for monitoring.

Q3: How do I determine the right torque level for my damper?

Torque depends on damper size and system resistance. For example, 8Nm suits dampers up to 1.5m², while 24Nm supports dampers up to 4.5m².

Q4: Can these actuators be used in building automation systems (BAS/BMS)?

Yes, they are compatible with BMS and BAS, supporting seamless integration with smart building technologies.

Q5: What maintenance is required for these actuators?

They are designed for long-term operation with minimal maintenance, featuring a self-resetting manual override and robust mechanical design.

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Standard Damper Actuator 8nm/16nm/24nm(24) Mondulating