NYGQ1Z

Self-recovery Over-voltage

and Under-voltage Protector

（25-63A）

Simple Efficient Safe Comprehensive

PRODUCT OVERVIEW

NYGQ1Z series self-recovery over-voltage and under-voltage protector is installed in the circuit to detect changes in voltage parameters of the electrical equipments. When the voltage rises above the set value, it can automatically cut off the power supply; when the voltage is recovered to the level below the set value, it can automatically turn on the power supply. It’s commonly used in residential compounds, office buildings, shopping malls, factories and other areas of the electrical system to protect circuits and electrical equipment from the hazards of over-voltage and under-voltage.

Technical parameters

Model Rated current
In(A)		 Number of poles Rated operating
voltage Ue(V）		 Rated insulation
voltage Ui(V) 		Rated frequency (Hz) Over-voltage starting value（V） Constant voltage recovery value（V） Under -voltage starting value（V）
NYGQ1Z 25 1P+N 230 690 50 270±5 240-260 175±5
NYGQ1Z 32
NYGQ1Z 40
NYGQ1Z 50
NYGQ1Z 63
NYGQ1Z 25 3P+N 230 690 50 270±5 240-260 175±5
NYGQ1Z 32
NYGQ1Z 40
NYGQ1Z 50
NYGQ1Z 63
Selection table

NYGQ1Z 3P+N 25A
Product code Number of poles Rated current
NYGQ1Z： Self-recovery over-voltage and under-voltage protector 1P+N:1 pole+N
3P+N:3 pole+N		 25A,32A, 40A,50A,63A

Note: Conventional product adopts the mode of upper inlet and lower outlet. If you need the mode of lower outlet and upper outlet, please specify when ordering.

Technical Parameters


NYGQ1ZSelf-recovery over-voltage and under-voltage protector

  • Current shell frame Inm (A) ：25,32,40,50,63

    Number of poles：1P+N

    Rated operating voltage (V)：230

    Rated insulation voltage Ui(V)：690

    Rated frequency(Hz)：50

    Over-voltage starting value(V)：270±5

    Constant voltage recovery value(V)：240-260

    Under -voltage starting value(V)：175±5

  • Current shell frame Inm (A) ：25,32,40,50,63

    Number of poles：3P+N

    Rated operating voltage (V)：230

    Rated insulation voltage Ui(V)：690

    Rated frequency(Hz)：50

    Over-voltage starting value(V)：270±5

    Constant voltage recovery value(V)：240-260

    Under -voltage starting value(V)：175±5

Selection table


  • Product code ： NYGQ1Z:Self-recovery over-voltage and under-voltage protector

    Number of poles：1P+N:1 pole+N；3P+N:3 pole+N

    Rated current：25A,32A,40A,50A,63A