Two-speed transformer

Two-speed transformer - a transformer controller having two adjustable settings, allowing a fan to achieve two performances.
 

Application

Two-speed transformer - a transformer controller having two adjustable settings, allowing a fan to achieve two performances (L - H). Switching between the settings takes place by an external signal (contacts closed - minimum speed, contacts open - the maximum speed).

In the TP version, the device is equipped with a start / stop contacts (to remotely activate and deactivate the device) and the contacts to connect the thermal sensor (TP - bimetal sensor) of the fan. In case of motor overheating (open circuit) the controller disconnects the power supply of the fan.

Technical data

  • Maximum ambient temperature of 35°C
  • Housing: IP 54
  • Setting range for the 230V version:
    L: 80V - 100V - 120V - 150V
    H: 120V - 150V - 170V - 190V - 230V
  • Setting range for the 400V version:
    L: 130V - 170V - 210V - 250V - 290V
    H: 210V - 250V - 290V - 330V - 400V

Caution

Speed ​​regulators can cooperate only with fans adapted to rotation speed control in one of the mentioned ways.
Name Nominal
voltage [V]
I max
[A]
Weight
[kg]
SC2-1-15L25 230 1.5 3.9
SC2-1-25L25 230 2.5 4.4
SC2-1-35L25 230 3.5 5.4
SC2-1-50L25 230 5 6.2
SC2-1-75L25 230 7.5 8.2
SC2-1-110L25 230 11 15.2
SC2A1-15L25 230 1.5 3.9
SC2A1-25L25 230 2.5 4.4
SC2A1-35L25 230 3.5 5.4
SC2A1-50L25 230 5 6.2
SC2A1-75L25 230 7.5 8.2
SC2A1-110L25 230 11 15.2
SC2A4-15L55 400 1.5 12.6
SC2A4-25L55 400 2.5 13.7
SC2A4-40L55 400 4 20.8
SC2A4-60L55 400 6 26.1
SC2A4-80L55 400 8 30.7
SC2A4-110L55 400 11 37.6