• BUD 40 3C
  • BUD 40 3Z
  • BUD 40 3C
  • BUD 40 3Z

DC SPD Type2 1000V BUD-40/3 IEC

BENY Electric BUD-40/3 DC Surge Protector 1000V Type 2 Surge Protective Devices DC SPD TUV Certified

Highlights :

  • RoHS material
  • 1000V Type 2 DC SPD for solar PV application
  • According to EN 50539-11, IEC 61643-31
  • Thermal disconnect inside for fault indication
  • 5 years warranty
  • rohs
  • TUV 100X100 icon
  • CE-Certified icon

Type 2 DC surge protection device up to 1000V

Solar DC SPD protects the solar equipments like solar panels and solar inverter from surges damage or overvoltage.


Improve the PV system safety for a longer PV system life.

PV standard EN 50539 and IEC 61643

The DC SPD is developed according to PV standard EN 50539-11 and new standard IEC 61643-31:


Low-voltage surge protective devices-Part 31: Requirements and tests methods for SPDs for photovoltaic applications.


BENY Electric is the first company in China tests the SPD at the PV standard.


Recommend by top solar inverter companies.


Model BUD-40/3
Moulds 3
SPD according to EN 50539-11 Type 2
Open Voltage Uoc Max 1000V
Max. discharge current (8/20 µs) [(DC+/DC-) –> PE] (Imax ) 40KA
Nominal discharge current (8/20 µs) [(DC+/DC-) –> PE] (In ) 20KA
Voltage protection level  Up ≤ 3.8KV
Response Time (tA ) ≤ 25 ns
Operating state / fault indication Green/Red
Remote Signalling Contact (optional) Changeover contact
For mounting on 35mm DIN rails
Degree of protection IP20
Certificate TUV / UL


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