T1+T2, Class B+C, Class I+II, T2, Class C, Class II, DC Surge Protective Device SPD for Photovoltaic & DC Applications


Photovoltaic applications are found within the Solar Industry. It is important to protect Photovoltaic (PV) Panels from surges to allow maximum ROI to the investors. By far, the biggest culprit of electrical surges rendering damage to solar panels is direct and indirect lightning strikes to the system.

SLP20-DC & SLP40-DC and  T1+T2 & T2 48V DC series for installation of the DC side to protect the terminal device in a PV system, like solar panels and inverters against the effects of lightning surge current.

Visual Indication: Green=OK, Red=Replace
Integrated keying prevents plug/base voltage mismating errors at the time of replacement.
Remote alarm contact to make status monitoring easy.
Quick thermal response for self-protection.
Voltage protection level (Up): 0.25kV/0.3kV/0.39kV/0.45kV/0.5kV/0.62kV/0.9kV/1.2kV/1.4kV/1.5kV.
Type 1, T1, Class B, Class I Iimp(10/350 μs): 4kA/7kA/25kA.
Type 2, T2, Class C, Class II, In(8/20μs): 10kA/20kA, Imax(8/20μs): 20kA/40kA/100kA
Ucdc: 24Vdc/38Vdc/65Vdc/75Vdc/100Vdc/125Vdc/150Vdc/180Vdc/275Vdc/350Vdc/460Vdc
IP20 Degree of Ingress Protection

We are a real AC&DC surge protection device (SPD) manufacturer, have 10 years of experience in the lighting and surge protection field, provide 5 years product warranty and OEM/ODM service. some of our DC surge protective device SPD approved by TUV, CB, CE, EAC according to IEC 61643-31:2018 and EN 50539-11:2013. Improve your plant KPIs with power surge protection, Get A Free Sample now!

DC Surge Protection Device T1+T2 & T2 48V DC series


  • SPD according to IEC 61643-31 & EN 50539-11 standard
  • Nominal discharge current In from 20 kA to 25 kA (8/20 μs) per path
  • Maximum discharge current Imax 20 kA from 40 kA to 100 kA (8/20 μs)
  • Impulse Discharge Current Iimp from 4 kA to 25 kA (10/350 μs)
  • Rated Operational DC Voltage Uo/Un: 48V DC
  • Monoblock and Pluggable Design with status indication
  • Optional remote indication contact

DC Surge Protector Device T2 Class C SLP40-DC series


  • SPD according to IEC 61643-31 & EN 5053911 standard
  • Nominal discharge current In 20 kA (8/20 μs) per path
  • Maximum discharge current Imax 40 kA (8/20 μs)
  • Max. continuous operational voltage Ucpv from 100 to 460 V DC
  • Plug-in module design with status indication
  • Optional remote indication contact

DC Surge Protective Device T2 Class C SLP20-DC series


  • SPD according to IEC 61643-31 & EN 50539-11 standard
  • Nominal discharge current In 10 kA (8/20 μs) per path
  • Maximum discharge current Imax 20 kA (8/20 μs)
  • Max. continuous operational voltage Ucdc from 24 to 65 V DC
  • Plug-in module design with status indication
  • Optional remote indication contact

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