.webp "Day-night 5-step speed controller")
.webp "high-low speed controller")
.webp "day night fan speed controller")
.webp "day night speed regulator")
.webp "high low speed regulator")
.webp "fan speed controller day-night")
EU declaration conformity
Fan speed controller | day-night function | 10 A
Product description
Two-speed controller for single-phase motors. the (combined) maximum current is 10 A.
The controller has two independent 5-speed switches for selecting two optimal fan speeds. Switching between both selected speeds is possible via a digital input. An unregulated output can be used to indicate normal motor operation.
The fan speed is controlled by reducing the motor voltage through an autotransformer. This technology results in a perfectly sinusoidal output voltage and guarantees quiet motor operation.
The housing can be surface mounted and is IP54 rated against dirt, dust and moisture.
Additional specifications and description
Transformer fan speed controllers
Transformer-based fan speed controllers are known for their robust construction, allowing them to withstand harsh environmental conditions. This durability ensures their reliable operation over an extended period.
These controllers are quite simple to install and operate, making them user-friendly and accessible to a wide range of applications. Transformer-based controllers provide speed control in steps, allowing users to adjust the fan speed in incremental levels to meet specific requirements. By reducing the motor voltage, these controllers help optimize power consumption and minimize energy waste, leading to energy savings.
Transformer-based controllers offer a cost-effective solution for regulating motor speed compared to more complex speed control methods. Since they do not rely on electromagnetic excitation in motors, transformer-based controllers help minimize noise generation during operation. This feature makes them suitable for noise-sensitive environments where quiet operation is essential.
Due to their durable design and reliable operation, these controllers can provide long service life when properly maintained.
So, transformer-based fan speed controllers offer a practical, energy-efficient, and cost-effective solution for controlling the speed of AC voltage controllable motors. Their noise reduction capabilities, ease of operation, and long service life make them an attractive choice for various applications, especially in noise-sensitive environments.
SC2-1 features
What makes the SC2-1 series different from other Sentera series of transformer based fan speed controllers are the two optimal speeds that are selected via knobs on its enclosure. Typically there are used for day and night control or different operating conditions. These speeds can be switched using an external change-over contact, such as a thermostat or timer. This enables energy savings and increased comfort by adjusting the motor speed based on specific requirements.
Unregulated output
The extra, unregulated output (230 VAC) is active when the motor is enabled. It can be used to control an external run-indicator, a damper, etc. E.g. when the fan is deactivated, the dampers is closed. When the fan is active, the damper is open.
Sheet steel enclosure
As standard, Sentera’s transformer fan speed controllers up to 7,5 A are in plastic enclosures, while those above 7,5 A are in metal enclosures. Enclosures play an important role in protecting the interior components or contents from various external factors such as debris, dust, water, and mechanical impact. The quality of enclosures is indeed essential to ensure the integrity and safety of the enclosed items.
The SC2-1 feature sheet steel enclosures designed to be resistant to external mechanical impacts. They can withstand accidental bumps, collisions, or other physical forces without compromising their structure or the items inside. This feature is particularly important in environments where there is a higher risk of such impacts, ensuring the protection of the enclosed components.
The enclosures have a paint finish, which serves as an extra layer of protection against corrosion and other environmental factors. The paint finish helps to enhance the durability and longevity of the enclosure. The EN 62208 certification ensures that the enclosures comply with the standards set for empty enclosures for low-voltage switchgear and control gear assemblies. The ingress protection rating of IP54 guarantees that the enclosures are designed to provide a high level of protection against dust and water ingress, they are effectively sealed against dust particles and can withstand water splashes from any direction, making them suitable for moderately harsh environments.
Transformer-based fan speed controllers are known for their robust construction, allowing them to withstand harsh environmental conditions. This durability ensures their reliable operation over an extended period.
These controllers are quite simple to install and operate, making them user-friendly and accessible to a wide range of applications. Transformer-based controllers provide speed control in steps, allowing users to adjust the fan speed in incremental levels to meet specific requirements. By reducing the motor voltage, these controllers help optimize power consumption and minimize energy waste, leading to energy savings.
Transformer-based controllers offer a cost-effective solution for regulating motor speed compared to more complex speed control methods. Since they do not rely on electromagnetic excitation in motors, transformer-based controllers help minimize noise generation during operation. This feature makes them suitable for noise-sensitive environments where quiet operation is essential.
Due to their durable design and reliable operation, these controllers can provide long service life when properly maintained.
So, transformer-based fan speed controllers offer a practical, energy-efficient, and cost-effective solution for controlling the speed of AC voltage controllable motors. Their noise reduction capabilities, ease of operation, and long service life make them an attractive choice for various applications, especially in noise-sensitive environments.
SC2-1 features
What makes the SC2-1 series different from other Sentera series of transformer based fan speed controllers are the two optimal speeds that are selected via knobs on its enclosure. Typically there are used for day and night control or different operating conditions. These speeds can be switched using an external change-over contact, such as a thermostat or timer. This enables energy savings and increased comfort by adjusting the motor speed based on specific requirements.
Unregulated output
The extra, unregulated output (230 VAC) is active when the motor is enabled. It can be used to control an external run-indicator, a damper, etc. E.g. when the fan is deactivated, the dampers is closed. When the fan is active, the damper is open.
Sheet steel enclosure
As standard, Sentera’s transformer fan speed controllers up to 7,5 A are in plastic enclosures, while those above 7,5 A are in metal enclosures. Enclosures play an important role in protecting the interior components or contents from various external factors such as debris, dust, water, and mechanical impact. The quality of enclosures is indeed essential to ensure the integrity and safety of the enclosed items.
The SC2-1 feature sheet steel enclosures designed to be resistant to external mechanical impacts. They can withstand accidental bumps, collisions, or other physical forces without compromising their structure or the items inside. This feature is particularly important in environments where there is a higher risk of such impacts, ensuring the protection of the enclosed components.
The enclosures have a paint finish, which serves as an extra layer of protection against corrosion and other environmental factors. The paint finish helps to enhance the durability and longevity of the enclosure. The EN 62208 certification ensures that the enclosures comply with the standards set for empty enclosures for low-voltage switchgear and control gear assemblies. The ingress protection rating of IP54 guarantees that the enclosures are designed to provide a high level of protection against dust and water ingress, they are effectively sealed against dust particles and can withstand water splashes from any direction, making them suitable for moderately harsh environments.
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