Variable speed control - separate ON-OFF switch - TK monitoring
ITRS9 series are electronic fan speed controllers. They control single-phase voltage controllable motors with a maximum current of 10 A. The fan speed is regulated by varying the motor voltage via phase angle control - Triac technology. Thanks to the precise digital control, the motor runs extremely quietly, even at low speeds. The minimum and maximum speed is adjustable via internal trimmers. There are two start-up modes - kick start and soft start. The motor can be enabled via the integrated ON-OFF switch or via the digital input. The TK monitoring function deactivates the motor in case of overheating. The alarm output indicates motor problems.
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.jpg "AC motor fan speed drive")
.jpg "AC motor variable speed controller 230 V")
.jpg "AC motor fan speed controller 230 V")
.jpg "AC motor variable speed controller 120 V")