Fan speed control for voltage controllable motors

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Fan speed control for voltage controllable motors

The ITR(S)9 series are designed for manual fan speed control (single- phase voltage controllable motors) in HVAC applications. We can provide solutions for the power range of 1,5 A to 10,0 A. The motor can be accelerated in kick start or soft start mode.

The separate, unregulated output can be used to connect a motor with start-up capacitor or can be used to control a valve, damper, run indicator, etc. The ITR(S)9 series are equipped with an illuminated ON/OFF switch for easy operation. There is no need for configuration – once the product is connected, it is ready to be operated.


ITR-9 – The basic version

  • Wide power supply range (110-240 VAC / 50-60 Hz)
  • Automatic supply voltage detection
  • Adjustable, stepless output voltage
  • Extra, unregulated output (2,0 A)
  • Minimum speed adjustable by internal trimmer
  • Illuminated ON/OFF switch
Connections
Connections

ITRS9 – Full option fan speed controller

    On top of the ITR-9 features, the ITRS9 series also offer following features:

  • Maximum and minimum speed adjustable by internal trimmer
  • TK (Thermal contact) input for motor overheating protection
  • Alarm output (max. 0,5 A)
  • Digital input (NC) – e.g. frost protection
  • Digital input (NO) – e.g. remote ON/OFF control
  • Green LED for run/stop indication
  • Red LED for alarm indication

A lot of functionalities available

ITR-9 connection diagram

ITRS9 connection diagram


Product overview

ITR-9 - Electronic digital fan speed controller

Supply voltage 110-240 VAC / 50-60 Hz

ITRS9 - Electronic digital fan speed controller with TK

Supply voltage 110-240 VAC / 50-60 Hz

Dandelion

The key features

  • Microprocessor controlled zero cross detection
  • Automatic power supply detection
    (110–240 VAC / 50-60 Hz)
  • Adjustable and stepless output signal
  • Motor overheating protection
  • Kickstart or soft start
  • Illuminated ON/OFF switch
  • Intuitive to use