PZH R2*M is a surge arrester according to EN 61643-11 ed.2 (IEC 61643-11:2011) consisting of high energy varistors. Its parameters enable its use in complex circumstances. The device is to be installed on the interface of LPZ 1 – LPZ 2 and higher zones according to standard EN 62305 ed.2 (IEC 62305:2010), i.e. into subsidiary switchboards and control boxes. The product has two PEN terminals, which can not be used as a PEN bridge. S indication specifies a version with remote monitoring. M indication specifies a type of construction with removable module.
| System configuration TN-C-S | False |
| Nominal discharge surge current (8/20) | 20 kA |
| System configuration DC | False |
| Nominal voltage AC | 230 V |
| System configuration IT | False |
| Max. continuous voltage AC | 275 V |
| System configuration TN-C | True |
| System configuration TN-S | False |
| System configuration TT | False |
| Number of conductors (without earthing) | 3 |
| Voltage protection level | 1,25 kV |
| Max. discharge surge current (8/20) | 50 kA |
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