STP T1+2 5KA PV is the PHOTOVOLTAIC range of combined Type 1+2/Class I+II devices intended for discharging lightning currents (10/350 μs) and protecting against induced voltage surges (8/20 μs), in accordance with EN 50539-11 and IEC 61643-31 standards.
These products provide advanced protection to photovoltaic systems by utilizing Mersen’s optimized dynamic thermal disconnection system, which does not require additional overcurrent protection (back-up fuse) due to its high short-circuit withstand rating.
The devices are suitable for all PV applications: large-scale and rooftop.
The series includes specific multipole products for multiple MPPT inverters.
• Lightning impulse current (10/350 us): 5kA
• Maximum discharge current (8/20μs): 40 kA
• Nominal discharge current (8/20μs): 15 kA, 20 kA
• Ucpv: 1060 Vdc, 1500 Vdc
• Iscpv: 10 kA (EN 50539-11), no back-up fuse required
• DIN-rail mountable, plug-in format
• Multiple MPPT specific products
• Visual and remote end of life indicators
• Reversible chassis to allow cable entry from above or below
• Mechanically coded cartridges to avoid cartridge replacement errors
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