DIN-rail surge protection for distribution boards, EV charging, solar and equipment protection.
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Type 2 protection across twelve models: three discharge ratings in one to four poles, so a single-phase consumer unit and a three-phase board with neutral are served from the same platform. A window on each module turns red when the module has reached the end of its life and needs replacing.
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The T/T arrangement of the WSA platform. The same three discharge ratings are supplied with a dedicated N-PE module alongside the phase modules, for installations where the neutral is not bonded to earth at the board. Six models: 1P+N on two modules, 3P+N on four.
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The same Type 2 duty in a single module instead of two, for boards where the spare ways are the constraint. The protection cartridges are pluggable, so a module that has reached the end of its life is exchanged without disturbing the wiring, and a green window plus a remote alarm contact both report the fault.
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The T/T version of the mini range, protecting L-N and N-PE from one module. Each rating is supplied in two connection formats — busbar and wire — so it drops into a busbar-fed board or one wired module by module without changing the device.
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Type 1+2 protection for the origin of an installation, where a device has to survive a direct lightning current rather than only the surge that follows it. Rated 12.5kA of 10/350us impulse current per pole alongside the 8/20us duty a Type 2 handles, in one to four poles, so the service entrance and the boards downstream can be protected on one platform.
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The Type 1+2 range configured for a T/T system, where the neutral has to be protected against the earth rather than treated as a reference. A gas discharge tube sits in the N-PE path and the remaining poles carry the varistor modules, so a 1P+N device is one tube and one varistor rather than two of a kind.
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Model number, poles or ways, current, voltage, breaking capacity and IP rating.
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Compatible enclosures, breakers, RCDs, RCBOs, SPDs and fuse systems.
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Technical insights link this product family to comparison, application and RFQ guidance.
What to include in an RFQ for a three-phase distribution board: current, ways, incomer, fault level, metering, SPD and project documents.
Read technical insight →A practical explanation of surge exposure, SPD type, coordination, backup protection and the information needed for an integrated board.
Read technical insight →A structured RFQ checklist covering ways, incomer, MCB/RCCB/RCBO arrangement, SPD, enclosure, labelling and documents.
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