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6.
Mounting
SPD
L1
L2
L3
N/PEN
11 14 12
300 V CAT III in the protection area of the SPD
Example:
Installation of the DEHNrecord SD with an SPD in an environment with overvoltage category IV.
In the protection area of the SPD (green area), the measurement category 300 V CAT III required for the DEHNrecord SD is achieved.
At the same time, the DEHNrecord SD monitors the functionality of the SPD via its remote signalling contact.
Current measurement is optionally possible with split core current sensors (DRC SD SCS 100) or Rogowski coils (DRC SD RCS 1000).
DRC SD
DRC SD SCS 100
5 6
4 3
300 V CAT IV
DRC SD RCS 1000
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