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- Surge Protective Device
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- DZ518 Motor Starter
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- High Breaking Capacity Circuit Breaker
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- CDSM1 Breaker
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- Intelligent Universal Circuit Breakers/Air Circuit Breaker
- Residual Current Breakers Overcurrent
- Residual Current Device
- Fuse
- Switch
- Micro Switch
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- Bell
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- Pilot Lamp
- Staircase Switch
- Push Button Switch
- SB1 Control and Signalling ∅ 22 mm(fixing)
- SB2-E Plastic Control and Signalling ∅ 22mm(fixing)
- SB2-B Metal Control and Signalling ∅ 22mm(fixing)
- SAL-B Control stations and enclosures
- SB3 Control and Signalling ∅ 25、30mm(fixing)
- SB4 Metal Control and Signalling ∅ 22mm
- SB5 Plastic Control and Signalling ∅ 22mm
- SAL-D, K Control stations and enclosures
- SB6 Plastic Control and Signalling ∅ 16mm(fixing)
- SB8 Control and Signalling ∅ 22mm(fixing)
- SB9 Control and Signalling ∅ 22mm(fixing)
- SB10 Control and Signalling ∅ 22mm(fixing)
- AD58 signal indicator series φ16、22、25、30mm(fixing)
- BA9s series bulb with integral LED
- AD58 & SM buzzer units
- SM buzzer series
- Limit Switch
- Time switch
- Rotary Switch
- Rocker switch
- Terminal
- Connect Box
- MG03 Series
- Water-proof Connection Box
- 6 Ways Distribution Boxes A06 Series
- 6 Ways Distribution Boxes B06 Series
- 10 Ways Distribution Boxes A10 Series
- 11 Ways Distribution Boxes B11 Series
- 14 Ways Distribution Boxes B14 Series
- 12 Ways Distribution Boxes A12 Series
- 24 Ways Distribution Boxes A24 Series
- Control stations and enclosure
- Plug & Socket
- Sensor
- Transformer & Meter
- Relay
- Others
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The function of lightning and surge protection systems is to protect the devices, functional isolations and overvoltage-sensitive consumer equipments of energy distribution systems against all lightning and overvoltage damages.
Due to the wide energy, voltage and frequency range of overvoltage it is advisable to develop one coordinative protection system covering the whole building;the outdoor lightning protection system is generally not sufficient to eliminate such malfunctions.
At most of types, the defected protection device can be made operative again by changing the damaged insert; these variants are also equipped with both optical operation signal and auxiliary status contact.
Due to the wide energy, voltage and frequency range of overvoltage it is advisable to develop one coordinative protection system covering the whole building;the outdoor lightning protection system is generally not sufficient to eliminate such malfunctions.
At most of types, the defected protection device can be made operative again by changing the damaged insert; these variants are also equipped with both optical operation signal and auxiliary status contact.
| Type | WZU4-40Z-600V | WZU4-40Z-800V |
WZU4-40Z-1000V |
||
|
Rated voltage (max.conlinuous voltage) |
L/N |
Uc |
600VDC 800VDC |
800VDC 1000VDC |
1000VDC 1200VDC |
|
Nominal discharge current(8/20) |
L/N N/PE |
In | 20kA | 20kA | 20kA |
|
Max.discharge current(8/20) |
L/N N/PE |
Imax | 40kA | 40kA | 40kA |
|
Voltagetection |
L/N | Uc | ≤3000V | ≤4000V | ≤5000V |
| Voltage protection Level at Ia |
L/N N/PE |
Uf | ≤1500V | ≤2000V | ≤3000V |
| Response time |
L/N N/PE |
tA | ≤25ns | ≤25ns | ≤25ns |
| Max.backup fuse | 125AgL/gG | 125AgL/gG | 125AgL/gG | ||
| Operating temperaturw range | g | -40℃...+80℃ | -40℃...+80℃ | -40℃...+80℃ | |
| Follow current extinguishing capability at Uc | 100Arms | ||||
| Cross-section area | 1.5mm² ~25mm² solid/35mm² flexible | ||||
| Mountng on | 35mm DIN rail | ||||
| Enclosure material | Thermoplastic, UL94-V0 | ||||
| Dimension | 4 mods | ||||
| Test standards | YD/T 1235.1-2002;GB 18802.1-2011;IEC 61643-1:2011-02 | ||||
| Certification | CE(LVD,EMC) | ||||
| Type of remote signalling contact | Un/I | Switching contact | |||
| Switching capacity | 250V/0.1A, 125V/0.2A, 75V/0.5A | ||||
| Cross-sectional area for remote signalling contact | Max.1.5mm² solid/flexible | ||||
| Continuous use of voltage | Uc:600V, 800V, 1000V, 1200V | ||||
| The biggest impact current |
Imax:40kA |
||||
| Installation | 3P | ||||
| Packing Unit | 1pc(s) | ||||
