Thyristor Switch Card For Capacitor Bank

  • The model is specially designed for APFC (Automatic Power Factor Correction) applications to switch on and off, 3 phase capacitor banks, based on the command from the APFC relay module.
  • Its replaces contactor switching with the solid state switching in APFC panels.
  • It has 12 or 24VDC command pulse or potential free contact from PF controller.
  • It is suitable to fire 2 sets of 25A to 500A back to back connected SCR/SCR or SCR/Diode modules.
  • It is guaranteed zero cross over firing, and offers a minimum switching time of 100mS.
  • There is a facility to accept two thermostat input for fan control and over temperature trip function. 
  • The model also consists of LED indications for power ON, THY1 ON, THY2 ON, FAN ON, CB ON and Over Temperature trip functions. It operates on 12VDC @ 600mA.
  • It is suitable for wide range of three-phase line voltage 110 to 500VAC (Special cards are available for 690/750 VAC line supply). Stud mounted or DIN rail mounted. 
  • Ready to use thyristor switch modules LTSM-XX are also available.

 

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