SB-B / SBKW DC surge arresters for DC traction networks 1–4.5 kV
SB-B / SBKW DC surge arresters with continuous operating voltage Uc 1–4.5 kV. They protect DC overhead contact lines, traction substations, electric rolling stock and trolleybuses from lightning and switching overvoltages.
- Continuous operating voltage Uc (DC)
- 1–4.5 kV
- Classes
- DC-B (SB-B porcelain, SBKW DC-B), DC-C (SBKW DC-C)
- Nominal discharge current
- 10 kA (DC-B) / 20 kA (DC-C)
- High-current 4/10 impulse
- 100 / 200 kA
Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.
Description
Made in porcelain and silicone housings. Class DC-B is represented by the porcelain SB-B and the silicone SBKW DC-B, class DC-C by the silicone SBKW DC-C. The nominal discharge current is 10 kA for DC-B and 20 kA for DC-C, the specific energy capability 12 / 28 kJ/kV Ur. Complies with IEC 62848-1, IEC 61373 and EN 45545-2.
Technical specifications
| Continuous operating voltage Uc (DC) | 1–4.5 kV |
|---|---|
| Classes | DC-B (SB-B porcelain, SBKW DC-B), DC-C (SBKW DC-C) |
| Nominal discharge current | 10 kA (DC-B) / 20 kA (DC-C) |
| High-current 4/10 impulse | 100 / 200 kA |
| Specific energy capability | 12 / 28 kJ/kV Ur |
| Standards | IEC 62848-1, IEC 61373, EN 45545-2 |
Request a price and lead time
SB-B / SBKW DC surge arresters for DC traction networks 1–4.5 kV. We reply within one business day.
Or email sales@usk.ua or call 044 339-50-20.
Customs codes
| UKTZED (Ukraine) | 8535 40 00 00 |
|---|---|
| HS, 6 digits | 8535 40 |
| CN (EU) | 8535 40 00 |
| HTSUS (USA) | 8535 40 00 00 |
| China customs tariff | 8535 40 00 00 |
Codes are for reference: the final code is determined at declaration for the specific model.
Questions and answers
What operating voltage are the arresters rated for?
Continuous DC operating voltage Uc from 1 to 4.5 kV.
How do classes DC-B and DC-C differ?
DC-B has a nominal discharge current of 10 kA and an energy capability of 12 kJ/kV Ur, DC-C 20 kA and 28 kJ/kV Ur respectively.
Can the arresters be installed on rolling stock?
Yes, the series is used on electric rolling stock and trolleybuses and complies with IEC 61373 and EN 45545-2.
Similar equipment from other manufacturers
