VA11 Series Damper Actuator

VA11 series spring-return damper actuator is applied to ventilation systems. It is directly installed on devices such as dampers, ventilation louvers, and air cabinets. It can be used to drive various air valves that require spring reset and fault protection control. It switches or limit the opening and closing
angle of the dampers to control the air volume or wind speed in the air duct according to control signals from PLC, DDC, and thermostats.

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Features Material of Main Parts Specifications Dimension Wiring Diagrams

Features

Single line control available
DC motor adopted
Spring-return

Overload protection
Easy installation, universal adapter adopted, suitable to both square and circular shaft
Passive feedback signal, optional position feedback switch

Scale indication, mechanical position indication function

Optional 5Nm to 20Nm

Material of Main Parts

Housing: A3
Return-spring: Stainless Steel
Return-Shaft: 45#
Transmission Gear: Brass, POM, A3

Gear Shaft: ball bearing steel

Rotating Shaft: Alloyed Zinc

Rubber Ring: PVC (Black)

Specifications

Torque	5Nm	10Nm	15Nm	20Nm
Damper Size	0.5 m²	1.0 m²	1.5 m²	2.0 m²
Operation Time	<70s	<100s	<150s	<150s
Spring Return Time	<20s	<25s	<25s	<30s
Operation Power Consumption	5W	5W	10W	10W
Standby Power Consumption	3W	3W	3.5W	3.5W
Transformer Capacity	8VA	10VA	15VA	15VA
Rated Voltage	24VDC; 24VAC/DC 50/60Hz; 100~240VAC 50/60Hz
Working Voltage Range	19.2~28.8V AC/DC (24V AC/DC); 85~265V AC (AC100~240V AC)
Cable	0.5mm²
Rotation Direction	Forward installation: clockwise; Reverse installation: anticlockwise
Manual Operation	Equipped with an Allen wrench, it is convenient for users to manually adjust the actuator during power
Rotation Angle	Maximum 95°, can be adjusted via mechanical limit
Noise	Motor Running: 45dB; Return: 62dB
Position Indication	Mechanical indicator
Electrical Degree	24VAC/DC: Grade III (Safe low Voltage); 100~240VAC: Grade II (Dual Insulation)
Protection Degree	IP54
Ambient Temperature	-20 ~ +50℃
Storage Temperature	-30 ~ +80℃
Max Ambient Humidity	95%RH, non-condensation
Damper Shaft Length	>90mm