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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 trun 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.

Ambient temperature: -25℃~+55℃
Altitude: ≤2000m (higher than 2000m, please contact Tysen-kld)
Relative humidity: Not more than 50%RH at 40℃, 90%RH at 20℃
Protection degree: IP20
Pollution class: Class 2
Installation category: Category II
Installation method: Guide rail mounted
Compliance standard: GB/T14048.5 "Low-voltage switchgear and controlgear — Part 51: Control circuit devices and switching element — Electromechanical control circuit devices"

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

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.

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