1. 50kA Surge Arrester Class I AC power SPD FV50B/4-255S
-Class I 50kA surge arresterwith remote control contacts,
- With indication window,
- Compact design,
-Used in the lightning protection zones concept at boundary LPZ0B-LPZ1,
-The core parts are spark gap with high discharge capacity,
-35mm2 DIN-rail in accordance with EN 50022/DIN46277-3,
-Low residual voltage and quick response.
-Protection mode:L1, L2, L3, L4-PE
2. AC surge protector for low-voltage power system Electrical parameters FV50B/4-255S
| Model No. |
FV50B/4-255S |
| Test class according to IEC61643-11:2011 |
I |
| Type of Network |
TT-TN-IT |
| Nominal voltage |
UN |
220/380V |
| Rated Voltage |
Uc |
255VAC |
| (Max. Cont. Operating Voltage) |
| Maximum discharge current (8/20μs) |
Iimp |
50kA |
| Nominal discharge current (8/20μs) |
Imax |
100kA |
| Voltage protective level at In |
Up |
≤2.0kV |
| Isolation resistance |
Risol |
>102MΩ |
| Response time |
tA |
≤100ns |
| Recommended back-up fuse |
250A |
| I/O Connections |
By screw terminal: 10-35mm2 |
| Mounting |
Symmetrical rail (EN50022/DIN46277-3) |
| Operation temperature range / RH |
-25ºC~+85ºC /95% |
| Degree of protection |
IP20 |
| Housing material |
UL94V0 |
| Disconnection indicator |
Mechanical indicator |
| Remote control contact |
Yes |
| Color |
gray |
3. Company information
Fatech Electronic (FOSHAN) Co., Ltd is a professtional manufacturer of lightning and surge protection products. The trademake is is "FATECH".
Main Products:
- Surge arresters for protection of photovoltaic system ,
- Surge protection devices for protection of power supply systems,
- SPD surge protectors for protection of signal system,
- Lighting rod,
- Test devices.
Quality &Standards:- Products are producted perISO9001:2008, IEC61643-11, EN 50539-11, CE, CNAS, iLAC etc.
We have an independent testing laboratory, and a complete set of advanced testing equipment, including impulse current generator, the SPD Test System of Thermal Stability, varistor tester, lightning device tester, & TOV testers. We built up a complete quality control system, and strict process control system, product's stability & reliability are qualified by users.
Main markets: 80% export, mostly to Europe, which including France, Cyprus, Greece, Czech Republic, Poland, Spain, Austria, Hungary, Switherland, Italy, Russia, Finland, Turkey, Slovenia, Ireland; and Asia, South America, Africa & other worldwide markets.
We are trying to develop Fatech into a world-class Electrical manufactures
Audited Supplier 
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