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EU declaration conformity
Fan speed controller | smoke extraction function | 5 A
Product description
Fan speed controller with 5 steps and smoke evacuation. It controls single-phase motors. The maximum motor current (combined) is 5 A.
The rotary switch may be used to select the needed AC fan speed. This rotary switch features an off position as well as five speed settings. The perfect sinusoidal form of the output voltage ensures silent motor running.
When the emergency switch is pressed, the motor rapidly accelerates to full speed.
The enclosure provides IP54 protection against dirt, dust, and moisture penetration. It may be wall-mounted in indoor environments
Additional specifications and description
Transformer-based fan speed control
Transformer fan speed controllers regulate speed of AC voltage controllable motors in steps. Transformer-based fan speed controllers offer a range of benefits, making them a desirable choice for speed control solutions. These controllers are known for their robustness, user-friendly nature, efficiency, and affordability. One significant advantage of using transformer-based control units is their ability to provide speed control without relying on electromagnetic excitation in motors. This feature makes them particularly suitable for environments where noise sensitivity is a concern. What you get by a transformer fan speed controller is: silent motor operation, simple control in steps and a controller with a long service life at a reasonable price!
Use
The SER-1 series of transformer fan speed controllers is intended for single-phase voltage controllable AC fans by reducing the motor voltage. AC fans operate using alternating current and convert it into mechanical power. It is possible to connect multiple motors to the controller, provided that the current limit is not exceeded. In such cases, all connected motors will operate at the same speed. If you are uncertain about the type of motor you have, it is strongly recommended to carefully review the accompanying documentation or contact the motor manufacturer for further assistance.
Extras
As standard, all Sentera transformer fan speed controllers feature an extra unregulated output that is not controlled or regulated to maintain a specific voltage or current level. In other words, the output is directly connected to the source without any voltage or current regulation circuitry. When the controller is on, the unregulated output is active, i.e. the output voltage is 230 VAC (equal to the input voltage), when the controller is off, the unregulated output is off as well.
What makes the SER-1 different from other Sentera series of transformer controllers is the smoke extraction button. Pressing the mushroom button would trigger a predefined emergency response – the fan will start running at maximum speed in order to evacuate the heat and smoke generated during a fire. Furthermore, besides the built-in mushroom button, the SER-1 series also features normally open contact for external remote button to switch the motor to maximum speed (smoke evacuation).
Also, this series features the option to easily change the 5 output voltages by changing the internal wiring. The factory connected output voltages 80, 110, 140, 170, and 230 VAC however, the product version features 190 VAC, which can be connected by disconnecting any of the other 5 steps. The wires are different colours and it is unlikely to make a mistake.
Surface mounted enclosure
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. Therefore, the enclosure of the SER-1 series is manufactured in-house. We use high-quality r-ABS VO (UL94) plastic. This material is flame extinguishing, very tough and offers good protection against impacts. It offers an IP54 protection against ingress dust and water. This fan speed controller can be installed on a wall or panel indoors.
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