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DC Protection Devices
WSPV DC Surge Protective Device
Type 1+2 surge protection for the DC side, in two and three pole versions up to 1500V. A PV array is an exposed conductive structure on a roof, so the lightning-current duty here is the Type 1 case rather than the overvoltage-only case.
Technical overview
Core specifications
TypeType 1+2
Open-circuit voltage Uoc600, 1000 or 1500VDC
Max continuous operating voltage Uc1300VDC
Lightning impulse current Iimp12.5kA
Nominal discharge current In20kA
Max discharge current Imax40kA
Voltage protection level Up≤4.0kV
Poles2P (to 1000V), 3P (to 1500V)
Ingress protectionIP20
Ambient temperature−40°C to +80°C
Remote signallingOptional
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Technical files
Datasheet, dimensions and certificate scope
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PDF · Product datasheet DWG/PDF · Dimensions & installation PDF · Certificate scope
Request Technical Files Typical use
- PV array DC side
- Combiner boxes
- Inverter input protection
Compliance references
- EN 61643-31
Customisation scope
- Remote signalling option
- Marking
- Packaging
Related products
Other products supplied for the same installations.
DC Protection Devices
WENC PV DC Combiner Box
A populated DC combiner box for the string side of a rooftop or ground-mount array — fuses on both polarities, an isolating DC breaker for maintenance, and a 1000V surge protector, in an IP65 enclosure rated for outdoor UV exposure.
View specifications →
DC Protection Devices
WPV-FU Photovoltaic Fuse Link
gPV fuse links in the two sizes the PV market actually uses: 10 × 38 for 1000V systems and 10 × 85 for 1500V. Both interrupt in under a millisecond and are rated for the full-range duty a string fuse has to cover.
View specifications →
DC Protection Devices
WPV32 Photovoltaic Fuse Holder
DIN-rail holders for the matching PV links, at 1000V and 1500V. The 1000V version carries a blown-fuse indicator, which is what makes a fault findable on an array without pulling every holder.
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