Electronic fan speed controllers


AC fan speed control

For more than two decades now, Sentera has been one of the leading manufacturers of fan speed controllers – devices to control the rotational speed of voltage controllable AC motors.

This microsite provides an overview of our product range of electronic fan speed controllers. All of them use phase angle control to reduce the motor voltage.


Fan speed control

Via a potentiometer – integrated in the fan speed controller’s enclosure – the requested fan speed can be adjusted. All models provide an integrated ON/OFF switch and adjustable minimum output voltage.

There are different versions with multiple mounting possibilities. Some versions provide an adjustable maximum output voltage, thermal motor protection, extra inputs and outputs, etc.

Overview fan speed controllers

see product details

LTX

Mounting possibilities

Inset / surface mounting *

Max. power range

4 A

Power supply

230 VAC / 50 Hz

Operation

Maximum to minimum speed, with operation indicator

Modbus RTU

-

Non regulated output 230 VAC

2 A

see product details

LTY

Mounting possibilities

Inset / surface mounting *

Max. power range

4 A

Power supply

230 VAC / 50 Hz

Operation

Minimum to maximum speed, with operation indicator

Modbus RTU

-

Non regulated output 230 VAC

2 A

see product details

MTX

Mounting possibilities

Inset / surface mounting *

Max. power range

4 A

Power supply

230 VAC / 50 Hz

Operation

Maximum to minimum speed

Modbus RTU

-

Non regulated output 230 VAC

2 A

see product details

MTY

Mounting possibilities

Inset / surface mounting *

Max. power range

4 A

Power supply

230 VAC / 50 Hz

Operation

Minimum to maximum speed

Modbus RTU

-

Non regulated output 230 VAC

2 A

* The 4 A version is only suited for surface mounting

see product details

USX

Mounting possibilities

Surface mounting

Max. power range

6 A

Power supply

120 VAC / 60 Hz

Operation

Minimum to maximum speed

Modbus RTU

-

Non regulated output 230 VAC

-

see product details

RDCZ

Mounting possibilities

Inset / surface mounting

Max. power range

1,5 A

Power supply

120–230 VAC / 50-60 Hz

Operation

Kickstart / softstart

Modbus RTU

Non regulated output 230 VAC

-

see product details

ITR-9

Mounting possibilities

Surface mounting

Max. power range

10 A

Power supply

120–230 VAC / 50-60 Hz

Operation

ITR - adjustable min. speed

Modbus RTU

-

Non regulated output 230 VAC

2 A

see product details

ITRS-9

Mounting possibilities

Surface mounting

Max. power range

10 A

Power supply

120–230 VAC / 50-60 Hz

Operation

ITRS - adjustable min. & max speed

Modbus RTU

-

Non regulated output 230 VAC

2 A

see product details

DRX

Mounting possibilities

DIN rail mounting

Max. power range

2,5 A

Power supply

230 VAC / 50 Hz

Operation

Kickstart / softstart

Modbus RTU

-

Non regulated output 230 VAC

2 A

see product details

DRY

Mounting possibilities

DIN rail mounting

Max. power range

2,5 A

Power supply

230 VAC / 50 Hz

Operation

Kickstart / softstart

Modbus RTU

-

Non regulated output 230 VAC

2 A

see product details

DRE

Mounting possibilities

DIN rail mounting

Max. power range

2,5 A

Power supply

230 VAC / 50 Hz

Operation

Kickstart / softstart

Modbus RTU

Non regulated output 230 VAC

2 A


Fan speed controllers with analogue input

The fan speed controllers with analogue input can be operated remotely. Both start/stop and the requested motor speed can be respectively controlled via the digital and analog inputs of the fan speed controller.

The control signal (analogue input) is a measure for the requested fan speed and can be provided via a potentiometer, sensor controller, HVAC controller, BMS system, etc.

Overview of the fan speed controllers with analog input:

see product details

EVS

Mounting possibilities

Surface mounting

Max. power range

10 A

Power supply

230 VAC / 50 Hz

Operation

Kickstart / softstart

Modbus
RTU

TK input for thermal motor protection

-

Non regulated output 230 VAC

2 A

see product details

EVSS

Mounting possibilities

Surface mounting

Max. power range

10 A

Power supply

230 VAC / 50 Hz

Operation

Kickstart / softstart

Modbus
RTU

TK input for thermal motor protection

Non regulated output 230 VAC

2 A

see product details

MVS

Mounting possibilities

DIN rail mounting

Max. power range

10 A

Power supply

230 VAC / 50 Hz

Operation

Kickstart / softstart

Modbus
RTU

TK input for thermal motor protection

-

Non regulated output 230 VAC

2 A

see product details

MVSS

Mounting possibilities

DIN rail mounting

Max. power range

10 A

Power supply

230 VAC / 50 Hz

Operation

Kickstart / softstart

Modbus
RTU

TK input for thermal motor protection

Non regulated output 230 VAC

2 A

see product details

TVSS

Mounting possibilities

DIN rail mounting

Max. power range

6 A

Power supply

400 VAC / 50 Hz

Operation

Kickstart / softstart

Modbus
RTU

TK input for thermal motor protection

Non regulated output 230 VAC

2 A


Easy to configure

Most of the electronic fan speed controllers only need limited configuration via an internal trimmer or dipswitches. The models with extra features can easily be configured via Modbus or via the integrated keyboard.


Sensistant Modbus configurator

The Sensistant Modbus configurator tool automatically recognizes the connected fan speed controller or sensor and allows the user to configure or monitor the device in an easy, intuitive way.

In combination with one of our PoM (Power over Modbus) modules, it is easy to connect. Sensitant can be combined with DRPS8-24-40 .


Free software

The Sentera 3S Modbus software is another possibility to configure or monitor any Sentera product with Modbus RTU communication in an intuitive way. The Modbus RTU to USB converter (article code CNVT-USB-RS485 ) allows you to easily connect your computer to the transmitter. All parameters of the connected device are visualised on one screen.


The key features

  • Designed for fan speed control of voltage controllable AC motors
  • DIN rail mounting, surface mounting or inset mounting available
  • Infinitely variable fan speed control for AC voltage controllable motors