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Electronic voltage controller type PXET16

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Code: #23121

Supplier: Ziehl Abegg AG

Voltage regulators have been established for many years. These are available as electronic voltage controllers, so-called phase angle control devices, or as transformer-based control devices. Typically, these products are used to control voltage-controllable external rotor motors (asynchronous motors). The advantage of this technology is extremely low investment costs. Electronic voltage regulators are available for rated currents up to 80 A. There are versions for all applications in ventilation technology. Built-in 5-step switches are standard and the products control the motors and fans without generating electronic motor noise.


  • These versions do not have any controls on the front of the device. Commissioning is through internal dip switches, potentiometer or jumper. Along with higher rated current, these devices also have a wide voltage range.

  • Simple commissioning:
    - This takes place by Dip switches, potentiometers or jumpers.
    - By setting the Dip switches accordingly, the desired device function (operating modes: speed controller, temperature or pressure controller) can be set. The setpoint setting is made by potentiometers.
    An analog input for sensors or setting signal
    Analog input E1: Setting/activation by selection of the operating mode (Dip switches, jumpers) e.g. 0-10 V, 4-20 mA. In operation as a controller connection of the appropriate sensor.
    1 digital input D1
    - For connection of an external, potential-free contact.
    - Enable function On/Off, external reset after motor fault, control function reversal, e.g. heating, cooling
    1 analog output A1
    - Output signal proportional to modulation or constant voltage +10 V (max. 10 mA) for connection of an external potentiometer for speed setting
    1 potential-free fault indication relay K1:
    - The relay drops out in the event of a fault. Max. load 250 V, 5 A.
    Integrated motor protection function
    - Connection possibility for thermostats "TB"
    Standard conformity
    Interference emission according to EN 61000-6-3 (domestic)
    Interference immunity according to EN 61000-6-2 (industrial)