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WDS238
Winston
Products Description
WDS238-VAP type multi-function Protective Device is designed to measure single phase two
wire AC active energy and used in overvoltage protection, under voltage protection and over-
current protection . In case of over-voltage fault, under-voltage fault or over-current fault in line,
this product can instantly power off the load to prevent electrical equipment from being burnt.
The over-voltage, under-voltage and over-current values of this product can all be set up by
yourself and can be adjusted on the basis of local practical condition .It is a long use-life product
with the advantage of high stability , high over load capability , low power loss and wide working
voltage range.
Features
1. LCD display with backlight, can display total active energy (kWh), real time current (A),
voltage(V), active power (W).
2. LCD display kWh (4 digital+1 decimal), Bi-directional total active energy measurement ,reverse
active energy measure in the total active energy
3. Product self-design has function of lighting protection
4. Overvoltage protection, under voltage protection and overcurrent protection can select auto-
Reclosing mode or manualReclosing mode
5. In case of over-voltage fault, under-voltage fault or over current fault in single phase line, the
product can power off the line and can automatically restore connecting the line over a time
delay after voltage of the line is recovered to normal condition.
6. In case of transient over voltage in line, the product can protect the equipment from false
operation.
7. In case that the line subjects to unstable voltage or sudden power-off and power-on due to
loosened connection and other fault, the product will disconnect the line.
8. When fault voltage of the line reaches the peak, the product itself will not be damaged.
9. Under over-current protection mode, you also can select Malignant load protection (Pure
Resistive Load limit) which is used for Apartments and Student Dormitories electric safety
10. You can select the circuit output cycle switch on/off mode
11. Led indication of overvoltage protection, under voltage protection and over-current protection
12. Diversified design for the protection, you can closed t any one of overvoltage protection,
under voltage protection and over current protection in any time
Technical Parameters
| Input working voltage | 85-300V |
| Overvoltage protection value | 85-300V ( default 270V) |
| Under voltage protection value | 85-300V( default 170V) |
| Over current protection value | 1-63A (default 40A) |
| 1-80A(default 60A special order) | |
| Rated frequency | 50/60Hz |
| Delay in switch on after power off | 2-255V ( default 2s) |
| Voltage circuit power consumption | ≤0.5W |
| Current circuit power consumption | <1VA |
| Active energy display range | 0-9999.9kWh |
| Voltage/current/active power accurate | +0.5% |
| Active energy accurate | +1% (IEC62053-21) |
| Operating temperature | -25℃~+70℃ |
| Storage temperature | 40℃~+80℃ |
| Relative humidity | ≤85% |
| Altitude | ≤2500m |
| Electromagnetic Environment | E2 |
| Mechanical life | ≥100000 cycles |
Usage
The product can be installed on 35 mm din rail, it should be install in the water proof box
indoor or outdoor. The product should be install fully in accordance with connection diagram on
the terminal cover, it is better to use copper as the leading wire for connection. All screws should
be tightened.
Dimension
Wiring diagram
Packaging & Shipping
Products Description
WDS238-VAP type multi-function Protective Device is designed to measure single phase two
wire AC active energy and used in overvoltage protection, under voltage protection and over-
current protection . In case of over-voltage fault, under-voltage fault or over-current fault in line,
this product can instantly power off the load to prevent electrical equipment from being burnt.
The over-voltage, under-voltage and over-current values of this product can all be set up by
yourself and can be adjusted on the basis of local practical condition .It is a long use-life product
with the advantage of high stability , high over load capability , low power loss and wide working
voltage range.
Features
1. LCD display with backlight, can display total active energy (kWh), real time current (A),
voltage(V), active power (W).
2. LCD display kWh (4 digital+1 decimal), Bi-directional total active energy measurement ,reverse
active energy measure in the total active energy
3. Product self-design has function of lighting protection
4. Overvoltage protection, under voltage protection and overcurrent protection can select auto-
Reclosing mode or manualReclosing mode
5. In case of over-voltage fault, under-voltage fault or over current fault in single phase line, the
product can power off the line and can automatically restore connecting the line over a time
delay after voltage of the line is recovered to normal condition.
6. In case of transient over voltage in line, the product can protect the equipment from false
operation.
7. In case that the line subjects to unstable voltage or sudden power-off and power-on due to
loosened connection and other fault, the product will disconnect the line.
8. When fault voltage of the line reaches the peak, the product itself will not be damaged.
9. Under over-current protection mode, you also can select Malignant load protection (Pure
Resistive Load limit) which is used for Apartments and Student Dormitories electric safety
10. You can select the circuit output cycle switch on/off mode
11. Led indication of overvoltage protection, under voltage protection and over-current protection
12. Diversified design for the protection, you can closed t any one of overvoltage protection,
under voltage protection and over current protection in any time
Technical Parameters
| Input working voltage | 85-300V |
| Overvoltage protection value | 85-300V ( default 270V) |
| Under voltage protection value | 85-300V( default 170V) |
| Over current protection value | 1-63A (default 40A) |
| 1-80A(default 60A special order) | |
| Rated frequency | 50/60Hz |
| Delay in switch on after power off | 2-255V ( default 2s) |
| Voltage circuit power consumption | ≤0.5W |
| Current circuit power consumption | <1VA |
| Active energy display range | 0-9999.9kWh |
| Voltage/current/active power accurate | +0.5% |
| Active energy accurate | +1% (IEC62053-21) |
| Operating temperature | -25℃~+70℃ |
| Storage temperature | 40℃~+80℃ |
| Relative humidity | ≤85% |
| Altitude | ≤2500m |
| Electromagnetic Environment | E2 |
| Mechanical life | ≥100000 cycles |
Usage
The product can be installed on 35 mm din rail, it should be install in the water proof box
indoor or outdoor. The product should be install fully in accordance with connection diagram on
the terminal cover, it is better to use copper as the leading wire for connection. All screws should
be tightened.
Dimension
Wiring diagram
Packaging & Shipping
