1. 25kA Surge Arrester Class I AC power SPD FV25B/4-275S
- High impulse current multi-layer three phase Iimp 25kA type 1 spark gap surge arrester,
- With indication window, with remote control contacts,
- 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.
2. AC surge protector for low-voltage power system Electrical parameters FV25B/4-275S
| Model No. | FV25B/4-275S |
| Test class according to IEC61643-11:2011 | I |
| Type of Network | TT-TN-IT |
| Nominal voltage | UN | 220/380V |
| Rated Voltage | Uc | 150VAC |
| (Max. Cont. Operating Voltage) |
| Maximum discharge current (8/20μs) | Iimp | 50kA |
| Nominal discharge current (8/20μs) | Imax | 50kA |
| Voltage protective level at In | Up | ≤1.6kV |
| 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
WHY CHOOSE US
FATECH ELECTRONIC CO., LTD., is located in Guangdong Provincial New Light Production Base, CHINA, which is a professional manufacturer on R&D and producing on surge protection products. Our company gathered all kinds of high-skillled personnels, including authority technical experts and professionals, and excellent technicians with more than 10 years experience. In-house testing lab. guarantee out-going products quality. Products are certified with TUV, CE; UL pending, 90% material are UL approved.
Our in-house test lab.:We established an independent testing laboratory, including reliability testing laboratory, environmental aging testing laboratory, release testing laboratory, which can be performed tests below:
Impulse current generator (8/20 μS/160kA and 10/350μS/20kA)
Thermal stability tester
Salt Spray Chamber
Multi-function Varistor Tester
On-line Aging Tester
Dielectric Voltage Withstand Tester
1.2/50 Voltage Impulse Generator
Environment Stimulating Tester
Lightning Surge Counter Tester
Our global partners:
We are now exporting more than 100 countries and areas, mainly in Europe, Asia, Latin-America, and Middle East. Our global partner including
Ericsson
Sri Lanka Telecom
Telefonica-Movie
Our certificates:
Audited Supplier 
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