Brand:Laiwo
Email:sales@wosom.cn
Telephone:+86-15067706272
whatsapp:+86-15067706272
Standard:BS EN61643-11
This range of SPDs are characterised by an 8/20μs current wave, they can prevent the spread of overvoltages in electrical installations and protects equipment connected to it. These surge protector must be replaced if the indicator turns red. They comply with BS EN61643-11.
WSA SA Power surge suppressor is a device used to protect the power system from surge voltage. When a surge voltage occurs in the power grid, it can react quickly and suppress the surge current.
Part No | WSA120 | WSA140 | WSA160 | WSA220 |
Type | Type2 | Type2 | Type2 | Type2 |
Voltage | 230/380V | 230/380V | 230/380V | 230/380V |
Temporary overvoltage withstand UT | 440/660V AC | 440/660V AC | 440/660V AC | 440/660V AC |
Nominal discharge current In | 10kA | 20kA | 30kA | 10kA |
Maximum discharge current Imax | 20kA | 40kA | 60kA | 20kA |
Protection level (at In) CM/DM (2) Up | 1.3kV | 1.5kV | 2.0kV | 1.3kV |
Residual voltage at 5kA | 1.2kV | 1.3kV | 1.5kV | 1.2kV |
Admissible short-circuit current | 25kA | 25kA | 25kA | 25kA |
Fuses type gG | 100A max | 100A max | 100A max | 125A max |
Operating temperature | -40/+85℃ | |||
Protection class | IP20 | IP20 | IP20 | IP20 |
Part No | WSA240 | WSA260 | WSA420 | WSA440 | WSA460 |
Type | Type2 | Type2 | Type2 | Type2 | Type2 |
Voltage | 230/380V | 230/380V | 230/380V | 230/380V | 230/380V |
Temporary overvoltage withstand UT | 440/660V AC | 440/660V AC | 440/660V AC | 440/660V AC | 440/660V AC |
Nominal discharge current In | 20kA | 30kA | 1OkA | 20kA | 30kA |
Maximum discharge current Imax | 40kA | 60kA | 20kA | 40kA | 60kA |
Protection level (at In) CM/DM (2) Up | 1.5kV | 2.0kV | 1.3kV | 1.5kV | 2.0kV |
Residual voltage at 5kA | 1.3kV | 1.5kV | 1.2kV | 1.3kV | 1.5kV |
Admissible short-circuit current | 25kA | 25kA | 25kA | 25kA | 25kA |
Fuses type gG | 125A max | 125A max | 125A max | 125A max | 125A max |
Operating temperature | -40/+85℃ | ||||
Protection class | IP20 | IP20 | IP20 | IP20 | IP20 |
Part No | Description | Box Qty |
WSA120 | 1 Pole 10kA/20kA Type 2 Surge Protective Device | 96 |
WSA140 | 1 Pole 20kA/40kA Type 2 Surge Protective Device | 96 |
WSA160 | 1 Pole 30kA/60kA Type 2 Surge Protective Device | 96 |
WSA220 | 2 Pole 10kA/20kA Type 2 Surge Protective Device | 48 |
WSA240 | 2 Pole 20kA/40kA Type 2 Surge Protective Device | 48 |
WSA260 | 2 Pole 30kA/60kA Type 2 Surge Protective Device | 48 |
WSA420 | 4 Pole 10kA/20kA Type 2 Surge Protective Device | 24 |
WSA440 | 4 Pole 20kA/40kA Type 2 Surge Protective Device | 24 |
WSA460 | 4 Pole 30kA/60kA Type 2 Surge Protective Device | 24 |
The WSA SA Power Surge Arrester is designed to protect electrical systems from voltage spikes and transients caused by lightning strikes, power surges, and other disturbances. By effectively diverting excess voltage away from sensitive equipment, it safeguards against potential damage. Its compact design allows for easy installation in residential, commercial, and industrial settings, ensuring optimal protection without occupying excessive space. Featuring a robust construction for durability, the WSA SA includes visual indicators for easy monitoring of operational status. Compliant with national electrical safety standards, this surge arrester is an essential component for enhancing the safety and longevity of electrical installations, providing peace of mind against unexpected surges.
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