Logo Sentera
Sentera – your partner in HVAC control solutions
Search
Transformer fan speed controller STRS4110L40 for 5 step motor control.
Transformer fan speed controller STRS4110L40 for 5 step motor control.
400 V transformer fan speed controller | TK monitoring | 11 A
400 V transformer fan speed controller | TK monitoring | 11 A
400 V transformer fan speed controller | TK monitoring | 11 A
400 V transformer fan speed controller | TK monitoring | 11 A

400 V transformer fan speed controller | TK monitoring | 11 A


Product description

This transformer fan speed controller controls 400 V motors, equipped with thermal contacts or TK. The (combined) maximum motor current is 11 A. The fan speed can be set via the in-built rotary switch on the front cover. The TK monitoring function disables the motor in case of overheating. The enclosure can be surface mounted and offers an IP54 protection against ingress of dirt, dust and moisture. The fan speed is regulated in 5 steps by reducing the motor voltage. The output voltage with perfect sinusoidal shape, guarantees quiet motor operation. The supply voltage is 400 V.


Article code STRS4110L40
GTIN 5401003016176
Category AC fan speed control - TK monitoring
Available
Current stock 4 U.
Factory lead time 5 Day(s)
Documents

Additional specifications and description


5-step speed controller for AC fans
This is a controller for three-phase 400 V motors. Via the built-in switch, you can select one of the 5 speeds . Autotransformer technology is used to reduce the motor voltage and the fan speed in 5 steps. This technology is very reliable and robust. It generates a motor voltage with perfect sinusoidal shape. This results in exceptionally quiet motor operation and extended service life. A special impregnated coating reduces the electrical noise from the autotransformers.

Thermal motor protection
This fan speed controller can monitor thermal motor contacts (TK or thermal contacts measure temperature in the motor windings). In case of motor overheating, the TK monitoring function will disable the motor to prevent motor damage. If the motor is not equipped with TK contacts, both TK terminals of the controller must be bridged to simulate normal motor temperature.

Easy to install!
This fan speed controller doesn't require configuration. Once installed, it can be used.
 
Unregulated output
The extra, unregulated output (1x 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.

Solid enclosure
The enclosure is made of high-quality steel. The enclosure can be surface mounted and offers an IP54 protection against ingress of dirt, dust and moisture.