YUMO NP1-VAKWH OVERVOLTAGE AND UNDERVOLTAGE PROTECTOR

Product Description

YUMO NP1-VAKWH OVERVOLTAGE AND UNDERVOLTAGE PROTECTOR


Technical Parameter

Rated supply voltage AC 220V
Rated frequency 50/60Hz
Overvoltage(>U)setting range 230-300V/OFF
Kilowatt-hour protection value 1-9999/oFF
>U And <U Trip Delay 0.5S
Output contact 1NO
Mechanical life 1000000
Pollution Degree 3
Proection Degree

IP20

Application Method

1. Connect the measure voltage to the 1 and 2 terminal

2. Connections of meter with internal current transformer as graph 1. Make the wire through the hole in the meter and the direction chose arbitrarily.

3. Connections of meter with external current transformer as graph 2. Make the wire through the hole in the meter, and connect the two wires of the secondary transformer to the 3 and 4 terminal.

4. When power on, the meter display the measure parameters.

5. When power on, you can press the button of SAM CK last for 5 seconds, then the electric energy will to be zero and start to cumulate when release the button. And when power off, the meter can save the value of electric energy and go on cumulating data when the meter power-on next.


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