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ZJBeny 1000V BUD-40/3 Surge Protection

Model  BUD-40/2 BUD-40/3
Moulds  2 3
SPD according to EN 50539-11  Type 2 Type 2
Open Voltage Uoc Max 600V 1000V
Max. discharge current (8/20 ps) [(DC+/DC-) --> PE] ((Imax)  40KA  40KA
Nominal discharge current (8/20 ps) [(DC+/DC-) --> PE] (In)  20KA  20KA
Voltage protection level Up  <3.8KV  <3.8KV
Response Time (tA ) <25 ns <25 ns
Operating state / fault indication Green/Red Green/Red
Remote Signalling Contact (optional) Changeover contact Changeover contact
For mounting on 35mm DIN rails 35mm DIN rails
Degree of protection IP20 IP20
Certificate  TUV TUV



1000V Type 2 DC SPD for solar PV application

BUD-40/3 is a type 2 Surge for DC and photovoltaic application.

Protect the solar equipment like solar panels and solar inverter form surges damage or overvoltage.

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


According to PV standard EN 50539 and IEC 61643

The DC SPD complies with PV standard EN 50539-11 and future standard IEC 61643-31:

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

ZJBENY is the first company in China tests SPD at the PV standard and make the SPD with true RoHS material.


Plug-in MOV modules

The BUD-40/3  surge protection devices is consisting of a base part and 3 plug-in high energy MOV protection modules. Remote signaling contact for monitoring device is for options.

With thermal disconnect mechanical inside for fault indication by red indicator flag.