Fan motors do not always need to run at full speed. Variable speed control allows airflow to be matched to actual demand, helping reduce energy use, noise, and unnecessary wear while maintaining effective ventilation. Cyclomade® supplies and configures practical speed control solutions for selected single-phase and three-phase exhaust fan systems, matched to the fan, power supply, and application requirements.

Our CVSD range is selected for commercial exhaust fan applications where reliable speed control, motor protection, and efficient operation are required. Units are supplied pre-programmed to suit the nominated fan and motor combination, helping reduce setup time on site.
Housed in robust IP-rated enclosures, these drives are suited to plant rooms, commercial kitchens, and service areas were moisture, dust, or demanding operating conditions may be present. Available models include standard three-phase and single-phase supply options, along with single-phase input to three-phase output configurations where site power is limited.
Depending on model, features may include integrated switching, adjustable speed control, soft start, motor protection, EMC filtering, and application-specific parameters suited to fan duty.


For selected single-phase fan models, variable speed switches provide a simple method of adjusting airflow. These controls allow fan speed to be adjusted within the motor’s operating range, giving installers and operators the ability to fine-tune performance based on the application.
Speed control is adjusted via a rotary dial, providing straightforward and reliable operation without the need for complex setup. These switches are typically installed in accessible service areas and are suited to smaller systems where full VSD control is not required.
Thermal overload protection is used to safeguard motors from overcurrent and overheating. Correctly selected and set overload devices are essential for protecting equipment and maintaining warranty compliance.
These devices are typically installed as part of the electrical circuit and must be matched to the motor’s rated current to ensure effective protection under normal and fault conditions.


Cyclomade® speed control solutions help commercial exhaust systems operate more efficiently by matching fan performance to actual site demand. Rather than running at full speed continuously, suitable systems can be adjusted to improve comfort, reduce operating costs, and support longer equipment life.
Common applications include commercial kitchens, workshops, plant rooms, processing areas, and ventilation systems where airflow demand changes throughout the day.
Get control solutions matched to your ventilation requirements.
Selecting the correct control solution depends on the fan type, electrical supply, and system design. We provide support in matching VSD and control options to Cyclomade® fans, including pre-configuration and setup guidance where required.
For detailed technical information, including compatibility and performance considerations, please refer to the specification sheets or contact our team.

Not all exhaust systems require a variable speed drive. VSDs are commonly used where airflow needs to be adjusted to suit operating conditions, particularly in commercial kitchens and applications where demand varies throughout the day.
Cyclomade® offers variable speed solutions for both single-phase and three-phase fans, including VSDs and variable speed switches. The most suitable option depends on the fan type, electrical supply, and how the system is intended to operate.
Many exhaust fans run at full speed by default, which can result in higher airflow and noise levels than required for some applications, particularly in smaller kitchens or during quieter operating periods.
In many cases, noise can be reduced by adjusting the fan speed using a variable speed drive (VSD) or variable speed switch. Reducing speed lowers both airflow and noise, while still maintaining effective ventilation when set correctly.
If you’re experiencing excessive noise, our team can help determine whether speed control is suitable for your system and recommend the best solution.
Yes, using a variable speed drive designed for single-phase input and three-phase output. This allows a three-phase motor to operate where only single-phase power is available, while still providing speed control and motor protection.
A variable speed drive (VSD) is used with three-phase motors and provides precise control of motor speed by adjusting frequency and voltage. A speed controller or variable speed switch is typically used with single-phase motors and offers a simpler method of adjusting speed within a limited range.
Most VSDs include built-in motor protection functions, however correct setup is essential. In some installations, additional protection devices may still be required depending on site conditions and electrical design.
Yes. Reducing speed lowers both airflow and available static pressure. This must be considered when adjusting a system to ensure required ventilation levels are maintained.
Where required, minimum speed settings can be applied to prevent the system from operating below acceptable limits.

Copyright © 2026 Cyclo International Pty Ltd | Sitemap