The NDD5-K type home line protection (hereinafter referred to as the protector) is a new generation of home line protection device developed according to the current commercial power situation. The protection function can be started when the voltage is too high or too low, and when the mains voltage is restored to normal, the protector automatically turns on the power supply, recovers the power supply, realizes full-automatic control, and also has the protection function of electric leakage (electric shock). The protector can be used alone or can be assembled with DZ47 (C45) to form a comprehensive line protection device with electric leakage, over-voltage, overload and short-circuit protection function, which can completely replace the DZ47LE series products. The product is compact in structure and beautiful in appearance, and is installed with DZ47 (C45) parallel rail.
This series of protective relays comply with the Q/ZXL 0027 Enterprise Standard, and comply with the requirements of GB 14048.5.
1. Working power supply: AC220V 50Hz;
2. Rated current: 20A, 32A, 40A (Resistive);
3. Rated power: 4.4kVA, 7kVA, 8.8 kVA;
4. Leakage current operation value:20mA~ 30mA;
5. Leakage current constant value: ≤ 15mA;
6. Over-voltage action cut-off value: AC264V ±5V;
7. Over-voltage recovery value: AC240V ±5V;
8. Under-voltage action cut-off value: AC176V ±5V;
9. Under-voltage recovery value: AC185V table 5V;
10. Transmission delay after power outage: lmin~2min;
11. Under-voltage action time: 1 s ~ 5 s;
12. Leakage action time: 0.1 s;
13. Electric life: 1 × 100000 times:
14. Ambient temperature:-5 ℃-40 ℃;
15. Altitude: ≤ 2000 m;
16. Humidity: when the maximum temperature of the installation site is 40 ℃, the relative humidity of the air shall not exceed 50%, and a higher relative humidity can be permitted at lower temperatures, for example, 90% at 20 ℃. Special measures should be taken for occasional condensation due to changes in temperature.
17. Installation mode: Rail type.
1. The dual-color light emitting tube on the panel indicates the working status of the protector: normal power supply when the indicator light is green, and the protection function starts to cut off the power supply when the light is red.
2. When the input of the product is connected to the market, it takes 1-2 minutes to send electricity to the load to prevent the domestic air-conditioning, the compressor of the refrigerator from stopping frequently because of the instability of the market electricity.
3. Product connection: n is zero wire, L is fire wire, please do not wrong.
1. After the new installation or operation of the protector (usually every other month), it is necessary to press the leakage test button once every other month to check if it is working properly.
2. After the protection action of the protector leakage, it is necessary to find out the cause. Remove the trouble and press the reset button to power the load.
3. After the product is powered on, do not touch the position of the power-carrying department, so as to avoid electric shock.
4. In order to prevent the contact heating under strong current, the screw of the connecting column must be tightened when connecting, otherwise the product will be damaged or other accidents will be caused by the excessive contact resistance causing the heating at the end of the connection.
5. The protector only protects the phase line at the output end and the electric shock between the electric equipment and the earth, and cannot protect the electric shock of L (not forming a loop with the earth) at the same time when contacting the two lines of the output and output. Please pay attention to the safe use of electricity.
1. Installation sequence: (1) → (2)
2. Removal sequence: (3) → (4)
Note: the main circuit power supply must be cut off before installation or removal.
The wiring of the direct control mode: the controlled electric appliance is single-phase power supply, the power consumption does not exceed the rated capacity of the controller, The direct control mode can be adopted, and the wiring method is shown in the following figure.
Please specify the product model, product protection current specification, voltage grade, quantity, if you have any special requirements, please specify in addition ,
For example：NDD5-K 20A AC220V 100PCS