Surge arrester POLIM 4.5..ID
Silicone-housed surge arrester for DC traction system up to 3 kV with class DC-C for indoor use
POLIM 4.5..ID 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 62848-1 / EN 50526-1. POLIM 4.5..ID also has other certifications:
- Shock and vibration tested according to IEC 61373
- Fire and smoke behavior tested and classified according to EN 45545-2
It is used for secure protection of DC traction systems against overvoltages from atmospheric discharges and switching conditions. The product is suitable for indoor installation only.
Applications
- Rolling stock
- Equipment in direct current installations
Why Hitachi Energy?
- Over 100 years of experience in overvoltage protection and more than 30 years with silicone insulation
- Local and global Hitachi Energy application support
- Proven safe short-circuit design
- Design life of more than 30 years
- Own production of metal-oxide (MO) resistors
- High energy withstand handling capability
- Mechanically strong design
- Maintenance-free
- Stable against shock and vibration
Brief performance data
| POLIM 4.5..ID | ||
|---|---|---|
| DC class | DC-C | |
| Continuous voltage through arrester (Uc=Ur) | kV DC | 4.5 |
| Charge transfer capability (Qt) | As | > 7.5 As |
| Energy withstand capability (Wth) | kJ/kV (Ur) | 45 |
For more details see the data sheet in downloads below.
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