Our Products:

Home >> Products >> YCU-A Type Controller

YCU-A Type Controller

Brief functional Introduction of YCU-A Controller

  • Indicate the current state of put- in circuit;
  • Indicate the working state of switch;
  • Any path stops the power supply, its control switch automatically transform to another power supply to output to the load;
  • Any path appears overload, under-voltage, lack of phase, its control switch automatically transform to another power supply to output;
  • Two-path power supply at the same time, its control switch transform to the main power output (self-transfer and self-recovery), users can ask for self-transfer and self-recovery or stand-by precedence circuit;
  • It is available to supply compulsive and adjustable delay within the range of 30 S;
  • Two modes of operation: manual and automatic, hand regulation

YCU-A-type controller connection terminals diagram:

  • a. A1, B1, C1, N1 connect three-phase four wire system of main power supply, if connected three-phase three wire,N1 grounding.
  • b. A2,B2,C2,N2 connect three-phase four wire system of stand-by power supply, if connected three-phase three wire,N2 grounding.
  • c. L1 connects the main power phase A through the auxiliary contact in the switch; it is the main power brake indicator.
  • d. L2 connects the stand-by power phase A through the auxiliary contact in the switch; it is the stand-by power closing indicator.
  • E. M1, M2, M3, M4 are out-put terminals of switch.

YCU-A controller N type wiring diagram:

YCU-A controller M type wiring diagram:

YCU-A controller Q type wiring diagram: