The Vent-Axia 10314301A is a three-phase, 5‑step auto transformer fan speed controller designed for reliable, noise-free speed regulation. Rated at 1 Amp, this unit is suitable for commercial and industrial environments where precise fan control and minimal motor hum are essential.
Equipped with a rotary switch offering On/Off and five fixed speed settings, the controller delivers stepped output voltages of 0, 65, 110, 175, 285, and 415 volts at 415V/3PH/50Hz. A built-in neon indicator ensures visual confirmation of operation, while the IP54-rated enclosure provides protection in challenging environments.
This unit supports multi-fan control when the total fan load does not exceed 90% of the transformer’s rated capacity, and the thermal contacts (TKs) are wired in series. It also features remote On/Off terminals, making it ideal for integrated ventilation systems.
An excellent choice for speed-controllable fans in commercial ventilation setups demanding durability, quiet operation, and flexible control.