Surge arrester POLIM-C N
Silicone-housed surge arrester of IEC class station low (SL) for AC systems up to 7.5 kV
POLIM-C N is a surge arrester with metal-oxide (MO) resistors without spark gaps directly molded in silicone housing, grey color, designed and tested according to IEC 60099-4; and it fulfills the requirement of ANSI/IEEE C62.11. Fire and smoke behavior tested and classified according to EN 45545-2.
It is used for secure protection of medium voltage systems against overvoltages from atmospheric discharges and switching conditions.
Applications
- Rotating machines
- Cable sheaths
- Components of secondary equipment
- Power electronics, converters
- Other MV distribution equipment
Brief performance data
| POLIM-C N | ||
|---|---|---|
| Maximum system voltage (Us) | kV | 7.5 |
| Continuous voltage through arrester (Uc) | kVrms | 0.44-7.5 |
| Rated voltage of arrester (Ur) | kVrms | 0.55-9.38 |
| Nominal discharge current (In) | kApeak | 10 |
| Thermal energy rating (Wth) | kJ/kV (Ur) | 5 |
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